• Metamaterials'2015
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6 September 2015 / Start time: 15 h 0 min
15:00 - 18:00 - Sunday registration
7 September 2015 / Start time: 7 h 0 min
07:00 - 08:45 - Monday registration
08:45 - 09:00 - Opening ceremony
09:00 - 10:00 - Plenary session I
09:00 - Plenary Session I

Session chairperson(s): Martin Wegener

09:00 - 10:00 - Electromagnetic Metamaterials: Past, Present, and Future Plenary [Show abstract]
  • Sergei Tretyakov, Aalto University, Finland
15 years have passed since the first publications on artificial double-negative materials and the perfect-lens concept. Since that time, research on metamaterials has been rapidly growing and has expanded well beyond materials with negative permittivity and permeability and even to areas which are far from classical electromagnetics and optics. At this time it is interesting and instructive to look back in time and think about roots of this research area. Likewise, marking this anniversary, it is the right time to think about future prospects. In this review talk we will start from reflections on some pre-cursors of current key research directions in electromagnetic metamaterials (discussing artificial chirality, extreme anisotropy, metasurfaces, etc.) and consider interesting modern implications of some of the classical ideas and results. The main body of the talk will be devoted to an overview of the present status and recent achievements in the field of electromagnetic metamaterials, with the emphasis on the results of our team. The talk will conclude with some thoughts about future research directions.
Media link(s):

Check our group web site: http://meta.aalto.fi

10:00 - 10:30 - Coffee break
10:30 - 12:00 - Oral sessions (Monday morning)
10:30 - Plasmonics I

Session chairperson(s): Nick Vamivkas

10:30 - 10:45 - Deformable Plasmonics From Large-Area, Nanostructured Sheets Oral [Show abstract]
  • Laura Brooks, University of Cambridge, United Kingdom
  • Jan Mertens, University of Cambridge, United Kingdom
  • Richard W. Bowman, University of Cambridge, United Kingdom
  • Jeremy J. Baumberg, University of Cambridge, United Kingdom
We demonstrate a simple, scalable fabrication method for producing large-area layered arrays of metallic nanostructures, embedded in a deformable polymer matrix. The elastomeric host medium promises active control of the material’s plasmonic and diffractive properties through dynamic tuning of the particle spacing and array geometry.
10:45 - 11:00 - Real Space Imaging Of Nano-Tip Plasmons Using Electron Energy-Loss Spectroscopy Oral [Show abstract]
  • Thorsten Weber, Physikalisches Institut, University of Bonn, Germany
  • Benjamin Schröder, IV. Physikalisches Institut, University of Göttingen, Germany
  • Sergey Yalunin, IV. Physikalisches Institut, University of Göttingen, Germany
  • Murat Sivis, IV. Physikalisches Institut, University of Göttingen, Germany
  • Sascha Schäfer, IV. Physikalisches Institut, University of Göttingen, Germany
  • Christian Matyssek, Institut für Physik, Humbold-University of Berlin, Germany
  • Thomas Kiel, Institut für Physik, Humbold-University of Berlin, Germany
  • Felix von Cube, Physikalisches Institut, University of Bonn, Germany
  • Stephan Irsen, research center caesar, Bonn, Germany
  • Kurt Busch, Institut für Physik, Humbold-University of Berlin, Germany
  • Stefan Linden, Physikalisches Institut, University of Bonn, Germany
  • Claus Ropers, IV. Physikalisches Institut, University of Göttingen, Germany
Here, we report the spatial mapping of surface plasmon polaritons (SPPs) on conical gold nano-tips by electron energy-loss spectroscopy. We observe the formation of standing wave patterns formed by reflection of plasmon modes in the apex region and use this information to deduce the local dispersion relation of the SPPs.
11:00 - 11:30 - Spatial Control of Surface Plasmon Polariton Excitation at Planar Metal Surface Invited oral [Show abstract]
  • Zhichao Ruan, Zhejiang University, China
<p> We illustrate that the surface plasmon polariton (SPP) excitation through the prism coupling method is fundamentally limited by destructive interference of spatial light components. We propose that the destructive interference can be canceled out by tailoring the relative phase for the different spatial components. As a numerical demonstration, we show that through the phase modulation the excited SPP field is concentrated to a hot energy spot, and the SPP field intensity is dramatically enhanced about three folds in comparison with a conventional Gaussian illumination.</p>
11:30 - 11:45 - Fabrication And Characterization Of Active Plasmonic Antennas Oral [Show abstract]
  • Manuel Peter, Universität Bonn, Germany
  • Cody Friesen, Universität Bonn, Germany
  • Stefan Linden, Universität Bonn, Germany
We present an approach to fabricate single active optical antennas as well as antenna arrays consisting of semiconductor quantum dots and plasmonic nanostructures. It is based on a two-step lithographic process in combination with chemical functionalization. It allows for the deposition of QDs with high accuracy relative to arbitrary nanostructures.
11:45 - 12:00 - Metallodielectric Eutectic Nanoparticle Based Composite Material for Plasmonics Oral [Show abstract]
  • Katarzyna Sadecka, Institute of Electronic Materials Technology, Poland
  • Marcin Gajc, Institute of Electronic Materials Technology, Poland
  • Hancza Barbara Surma, Institute of Electronic Materials Technology, Poland
  • Johann Toudert, Instituto de Óptica, Spain
  • Dorota Anna Pawlak, Institute of Electronic Materials Technology, Poland
Self-organized three-dimensional nanoplasmonic Bi2O3-Ag eutectic composite was obtained by the micro-pulling down method. This material exhibits localized surface plasmon resonance (LSPR) at 595 nm. To our knowledge this is the first demonstration of eutectic-based nanoplasmonic material.
10:30 - Invisibility

Session chairperson(s): Sebastien Guenneau

10:30 - 10:45 - Emulating Moving Objects Through Linear Momentum-Biased Metamaterials: A Route to Artificial Doppler Effect and Velocity Cloaking Oral [Show abstract]
  • Davide Ramaccia, University Roma Tre, Italy
  • Dimitrios Sounas, University of Texas at Austin, Texas, USA
  • Andrea Alù, University of Texas at Austin, Texas, USA
  • Antonino Tobia, University Roma Tre, Italy
  • Filiberto Bilotti, University Roma Tre, Italy
  • Alessandro Toscano, University Roma Tre, Italy
<p> In this contribution, we investigate on the possibility to emulate a moving object by using a metallic reflector loaded with a linear momentum-biased metamaterial slab. It consists of an artificial dielectric whose refractive-index is modulated as a periodic function in both space and time, leading to a periodic profile of the refractive index that moves with a certain velocity. The periodicity of the spatial modulation and the modulation frequency are properly chosen in order to frequency modulate the propagating signal in the slab. We show that by properly choosing the modulation scheme of the metamaterial slab, it is possible achieving an artificial Doppler effect for static objects and compensating the Doppler frequency shift due to the real movement of the scatterers at a certain velocity, leading to the first attempt of a velocity cloak.</p>
10:45 - 11:00 - Modeling and Design of Optical Mantle Cloaking Devices Oral [Show abstract]
  • Alessio Monti, Niccolò Cusano University, Italy
  • Andrea Alù, University of Texas at Austin, USA
  • Alessandro Toscano, Roma Tre University, Italy
  • Filiberto Bilotti, Roma Tre University, Italy
<p> In this contribution, we propose a novel approach for the design of scattering cancellation devices operating at optical frequencies and exhibiting enhanced performance compared to the state of the art. The cloaks, consisting of an arrangement of plasmonic nanoparticles, are modeled through a 2D analytical model able to assign an average surface reactance to the nanoparticles array. The availability of a rigorous model allows us demonstrating that the use of nanoparticles with high eccentricity is able to generate a scattering cancellation effect within the entire optical range, strongly relaxing the current requirements on the nanoparticles size. Full-wave simulations confirming the desired cloaking performance of the nanoparticle-based cloaks are provided.</p>
11:00 - 11:30 - Recent Progress on Diffusive Light Cloaking Invited oral [Show abstract]
  • Martin Wegener, Institute of Applied Physics, Karlsruhe Institute of Technology, Germany
We review our recent progress on optical invisibility cloaking in turbid optical media. This includes transient experiments, all-solid-state experimental realizations, and theoretical modeling beyond the diffusion equation.your abstract here
11:30 - 11:45 - Cloak Imperfect Oral [Show abstract]
  • Paul Kinsler, Imperial College London, United Kingdom
  • Martin McCall, Imperial College London, United Kingdom
We show that neither sophisticated cloaking transformations nor simple compression/expansion transformations are capable of generating perfect transformation devices. This is demonstrated using simple theory and augmented by numerical simulations that investigate the role of impedance rescaling.
11:45 - 12:00 - Optical Cloaking with ENZ-metamaterials Oral [Show abstract]
  • Alexander Shalin, ITMO University, Russia
  • Pavel Ginzburg, King’s College London, London, Great Britain
  • Alexey Orlov, ITMO University, Russia
  • Ivan Iorsh, ITMO University, Russia
  • Pavel Belov, ITMO University, Russia
  • Yuri Kivshar, Australian National University, Australia
  • Anatoly Zayats, King’s College London, London, Great Britain
Nearly perfect concealing of arbitrary objects in ENZ metamaterial acting as an alignment-free cloak is proposed. The scattering suppression relies on the combination of normal and additional modes simultaneously existing in a spatially dispersive material.
10:30 - Homogenization

Session chairperson(s): Ping Sheng

10:30 - 11:00 - Dynamic Effective Properties For Structured Media Invited oral [Show abstract]
  • Tryfon Antonakakis, 20 Radley Mews, United Kingdom
  • Richard Craster, Imperial College London, United Kingdom
  • Sebastien Guenneau, Institut Fresnel, France
Homogenization theory is often viewed as being limited to static or quasi-static low frequency, long waves and since many of the most interesting situations in structured media are at high frequencies and short waves relative to the structure it is often not used. However, it is possible, as we shall outline, to develop a high frequency homogenisation that creates dynamic effective media.
11:00 - 11:15 - Effective Propagation Index Of Periodic Electromagnetic Structures Oral [Show abstract]
  • Boris Gralak, CNRS - Institut Fresnel, France
Propagation properties of periodic structures are described with the definition of the effective index for all frequencies and wavevectors. This definition is based on the complex analytic structure of the Bloch spectrum, and on an extended Kramers-Kronig expression. Several explicit formulas of the effective index will be given, for all frequencies and wavevectors, in the situations of multilayer stacks and two-dimensional photonic crystals where perturbation theory can be applied.
11:15 - 11:30 - Subwavelength Grating Waveguide Design Rules for Integrated Photonics Oral [Show abstract]
  • Hamdam Nikkhah, University of Ottawa, Canada
  • Trevor J. Hall, University of Ottawa, Canada
Sub-wavelength waveguide gratings enable the engineering of the optical properties of integrated photonic components. Sub-wavelength scale simulations over the full component are not reliable and reliance must be placed on effective media theory. It is shown here how the properties of these components may be captured by simple design rules
11:30 - 11:45 - Quantitative Metamaterial Property Extraction Oral [Show abstract]
  • David Schurig, University of Utah, ECE Department, USA
We examine an extraction model for metamaterials, not previously reported, that gives precise, quantitative representation of S-parameter data over the complete frequency range from DC to frequencies where the free space wavelength is only a modest factor larger than the unit cell dimension. This model is found to be the most probable model in a Bayesian analysis for several typical metamaterial unit cell designs. The model is comprised of a small number of slabs of distinct, finite thickness, one for each resonance. The resonance dispersion is Lorentzian and thus strictly causal. This new model is compared with previous models for correctness likelihood, including an appropriate Occam’s factor for each fit parameter. We find that this new model is by far the most likely to be correct in fits to S-parameter simulation data from several classic metamaterial unit cells.
11:45 - 12:00 - New Aspects of Artificial Diamagnetics Oral [Show abstract]
  • Mikhail Lapine, University of Technology, Sydney, Australia
  • Lukas Jelinek, Czech Technical University in Prague, Czech Republic
Artificial diamagnetic metamaterials are known to produce impressively low permeability values in a broad frequency range. As an observable feature however, the same can be attributed to good conductors. We analyse performance of artificial diamagnetics with regards to applications such as levitation, in comparison to the use of bulk metals, and show that as long as the fields in the exterior of the body are concerned, non-structured metals outperform metamaterial structure. Furthermore, we assess the performance of practical samples of artificial diamagnetics, taking their discrete structure and finite size into account, and find important distinctions in their response as compared to the predictions of effective medium theory. Our results are therefore crucially important for the future development of this research direction.
10:30 - Acoustic Metamaterials I

Session chairperson(s): Martin van Hecke

10:30 - 10:45 - Target Localization Using an Acoustic Leaky Wave Antenna Aperture and Single Acoustic Transducer Oral [Show abstract]
  • Christina Naify, Naval Research Lab, USA
  • Matthew Guild, National Research Council Research Associateship Program, USA
  • Charles Rhode, National Research Council Research Associateship Program, USA
  • David Calvo, Naval Research Lab, USA
  • Gregory Orris, Naval Research Lab, USA
Development of a variable index leaky wave antenna for use in localizing acoustic targets is presented. The antenna uses a one-dimensional right/left hand transmission line structure to tune the relationship between radiation angle and frequency. The antenna aperture is used to locate acoustic targets using both passive and active techniques.
10:45 - 11:15 - Breaking Temporal Symmetries in Acoustic Metamaterials Invited oral [Show abstract]
  • Andrea Alu, The University of Texas at Austin, USA
  • Romain Fleury, The University of Texas at Austin, USA
  • Dimitrios Sounas, The University of Texas at Austin, USA
  • Alexander Khanikaev, City University of New York, USA
We discuss our recent investigations on breaking time-reversal and spatio-temporal symmetries to provide novel functionalities in the field of metamaterials, with special emphasis on the field of acoustics and sound manipulation.
11:15 - 11:45 - Wood anomalies in Lattices of Cylindrical Perforated Shells Invited oral [Show abstract]
  • Jose Sanchez-dehesa, Universitat Politecnica de Valencia, Spain
  • Victor M. Garcia-Chocano, Universitat Politecnica de Valencia, Spain
The enhancement of sound absorption by the excitation of Wood anomalies in slabs of cylindrical perforated shells is here studied. These scattering units have low losses when the diameter of the perforations is on the order of hundreds of microns or higher. It has been observed that slabs consisting of a few layers of perforated shells exhibit high levels of absorption that cannot be explained in terms of the dissipative properties of a single scatterer. This behavior is explained by the excitation of resonant Wood anomalies that redirect the sound perpendicularly to the incident direction. Thus, energy dissipation is obtained from the long path that the sound wave travels inside the slab.
11:45 - 12:00 - Coherent And Unidirectional Perfect Absorption Using Subwavelength Acoustic Resonators Oral [Show abstract]
  • Aurelien Merkel, Laboratoire d'Acoustique de l'Université du Maine UMR-CNRS 6613, France
  • Georgios Theocharis, Laboratoire d'Acoustique de l'Université du Maine UMR-CNRS 6613, France
  • Olivier Richoux, Laboratoire d'Acoustique de l'Université du Maine UMR-CNRS 6613, France
  • Vicent Romero-Garcia, Laboratoire d'Acoustique de l'Université du Maine UMR-CNRS 6613, France
  • Vincent Pagneux, Laboratoire d'Acoustique de l'Université du Maine UMR-CNRS 6613, France
We theoretically and experimentally study the acoustic scattering in a two-port one-dimensional waveguide, side-loaded by resonators. The lossless theory predicts high quality transparent modes induced by Fano interferences. In the presence of the intrinsic losses, these modes can be critically coupled leading to the coherent perfect absorption of acoustic waves. In asymmetric structures a unidirectional almost perfect absorption is possible. The control of perfect absorption by the proper tuning of few resonators and the engineering of the losses will open new possibilities in important applications in various wave-control devices.
12:00 - 13:30 - Lunch break (Monday)
13:30 - 15:00 - Oral sessions (Monday afternoon 1)
13:30 - Plasmonics II

Session chairperson(s): Costas Soukoulis

13:30 - 13:45 - Magnetic Localized Surface Plasmons Supported by Metal Structures Oral [Show abstract]
  • Paloma A. Huidobro, Imperial College London, Department of Physics, United Kingdom
  • Esteban Moreno, Departamento de Fisica Teorica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autonoma de Madrid, Spain
  • Luis Martin-Moreno, Instituto de Ciencia de Materiales de Aragon and Departamento de Fisica de la Materia Condensada, CSIC-Universidad de Zaragoza, Spain
  • John B. Pendry, Imperial College London, Department of Physics, United Kingdom
  • Francisco J. Garcia-Vidal, Departamento de Fisica Teorica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autonoma de Madrid, Spain
Here we study the effect of realistic metal properties on the emergence of magnetic localized surface plasmons. These are subwavelength magnetic dipole modes supported by metallic particles that are corrugated with very long, curved grooves. By means of numerical simulations, we show that, despite the presence of losses in the metal, the concept of magnetic localized surface plasmons is general and can be applied to a broad range of frequencies, up to the mid-infrarred regime.
13:45 - 14:15 - How to "Digitize" Metamaterials Invited oral [Show abstract]
  • Cristian Della Giovampaola, University of Pennsylvania, USA
  • Nader Engheta, University of Pennsylvania, USA
Inspired by the Boolean algebra, the notion of digital electronics and the binary number theory, we have developed the methodologies to “digitize” metamaterials. We explore how an arbitrary value of the permittivity function can, in principle, be synthesized by judicious combinations of only two constituent materials with two different permittivity parameters. We have analyzed the conditions upon which one can achieve such synthesis, and have investigated theoretically issues such as the role of loss, shape and dimensions of the constituent elements. Two different digital systems have been considered: (1) the “rectangular bytes” and (2) the “core-shell bytes”. We have investigated the various features of these two systems, and their advantages and constraints. We present some of our theoretical results on this concept as utilized in several case studies.
14:15 - 14:45 - Working on Aluminum Plasmonic Metamaterials Invited oral [Show abstract]
  • Alejandro Manjavacas, Rice University, USA
<p> Aluminum is becoming a very promising alternative to noble metals. This material is earth abundant, low in cost, CMOS compatible, and capable of supporting tunable plasmon resonances spanning the visible and UV parts of the electromagnetic spectrum. In this contribution we will explore the use of aluminum nanostructures to develop novel applications in the fields of plasmonics and metamaterials.</p>
14:45 - 15:00 - Switchable Optical Forces due to Polarization-Dependent Spin-Orbit Coupling on Particles Near a Surface Oral [Show abstract]
  • Francisco J. Rodríguez-Fortuño, King's College London, United Kingdom
  • Nader Engheta, University of Pennsylvania, United States of America
  • Alejandro Martínez, Universitat Politècnica de València, Spain
  • Anatoly V. Zayats, King's College London, United Kingdom
Spin-orbit coupling enables directional scattering of light from a particle by controlling the incident polarization. We propose using polarized illumination to induce lateral scattering, associated with a lateral electromagnetic momentum, and therefore accompanied by an unusual recoil force that can be switched with the polarization, with no field gradients.
13:30 - Transformation approaches I

Session chairperson(s): Carlos Garcia-Meca

13:30 - 14:00 - Measuring Topological Invariants in Photonic Systems No show [Show abstract]
  • Mohammad Hafezi, University of Maryland, USA
<p> Put your abstract here</p>
14:00 - 14:30 - Supersymmetric Photonics: From Mode Converters to a New Class of Transformation Optics Invited oral [Show abstract]
  • Matthias Heinrich, Institute of Applied Physics, Friedrich-Schiller-University Jena, Germany
  • Mohammad-Ali Miri, CREOL The College of Optics & Photonics, University of Central Florida, USA
  • Simon Stützer, Institute of Applied Physics, Friedrich-Schiller-University Jena, Germany
  • Stefan Nolte, Institute of Applied Physics, Friedrich-Schiller-University Jena, Germany
  • Alexander Szameit, Institute of Applied Physics, Friedrich-Schiller-University Jena, Germany
  • Demetrios N. Christodoulides, CREOL The College of Optics & Photonics, University of Central Florida, USA
<p> We provide a brief introduction to supersymmetric photonics and present our newest theoretical findings and experimental results on SUSY mode conversion and the scattering dynamics of light propagating in optical SUSY partner structures. Finally, we show how these notions can be harnessed in a SUSY-inspired extension of transformation optics, enabling the substitution of high-refractive-index arrangements with low-contrast equivalent structures that exhibit identical reflection and transmission properties.</p>
14:30 - 14:45 - Coordinate Invariance in Transformation Optics Oral [Show abstract]
  • Robert Thompson, University of Otago, New Zealand
  • Mohsen Fathi, Payame Noor University, Iran
Transformation optics can involve multiple transformation operations, creating confusion as to the meaning and character of these different transformations. We use an example of cloaking in curved spacetime to elucidate the difference between cloak, coordinate, and frame transformations.
14:45 - 15:00 - Optical Gravitational Collimation and Observation of Einstein's Rings in transformation optics Oral [Show abstract]
  • chong sheng, Nanjing University, China
  • Rivka Bekenstein, Physics Department and Solid State Institute, Technion, Israel
  • Hui Liu, Nanjing University, China
  • Shining Zhu, Nanjing University, China
  • Mordechai Segev, Physics Department and Solid State Institute, Technion, Israel
We experimentally demonstrate collimation in transformation optics by designing a refractive index profile analogous to the curvature of a star. Our experiments also enable the observation of Einstein’s Rings caused by gravitational lensing as predicted in 1936.
13:30 - Metamaterials with extreme parameters

Session chairperson(s): Andrea Alu

13:30 - 13:45 - Bound States Within the Continuum - A Metamaterial-Semiconductor Analogy Oral [Show abstract]
  • Ivana Hrebikova, Dept. of Electromagnetic Field, CTU in Prague, Czech Republic
  • Lukas Jelinek, Dept. of Electromagnetic Field, CTU in Prague, Czech Republic
  • Mario Silveirinha, Dept. of Electrical Engineering Instituto de Telecomunicacoes, Univerisity of Coimbra, Portugal
The existence of bound states within the continuum is known since the early years of quantum mechanics. However a realistic quantum system supporting such bound states has not yet been designed. Here we present a core--shell semiconductor heterostructure composed of Hg(1-x)Cd(x)Te compounds, which is able to support the bound states within the continuum using zero-valued effective mass within the outer shell. The working principle is analogous to that of the recently proposed open core-shell plasmonic resonators for light waves.
13:45 - 14:15 - Measurement of the Zak Phase of Photonic bands Through the Interface States of Metasurface/Photonic crystal Extended oral [Show abstract]
  • Qiang Wang, Nanjing University, China
  • Meng Xiao, Hongkong University of Science and Technology, Hongkong
  • Hui Liu, Nanjing University, China
  • Fan Zhong, Nanjing University, China
  • Shining Zhu, Nanjing University, China
  • Chiting Chan, Hongkong University of Science and Technology, Hongkong
We propose an experimental method to measure Zak phase in optical system. We can extract the property of each band gap through surface states which exists at the interface between metasurfaces and photonic crystals. By comparing the properties of two adjacent band gaps, Zak phase of the band sandwiched between them can be directly determined.
14:15 - 14:30 - Diamagnetic Wire Metamaterial. Theory And Experimental Verification Oral [Show abstract]
  • Ilya Yagupov, ITMO University, Russia
  • Dmitry Filonov, ITMO University, Russia
  • Sergei Kosulnikov, ITMO University, Russia
  • Pavel Belov, ITMO University, Russia
  • Alexander Ageyskiy, ITMO University, Russia
  • Ivan Iorsh, ITMO University, Russia
We shown that the metamaterial composed of wires of finite radius exhibit strong diamagnetic response. In previous works devoted to a wire medium it has been assumed that these structures possess only electric susceptibility, however we show that the account for the non-zero magnetic susceptibility is required for the adequate homogenization. We support analytical and numerical simulations with the experimental measurements of the scattering crosssection of the wire metamaterial block.
14:30 - 14:45 - Extreme Electromagnetic Properties with Bianisotropic Nihility Oral [Show abstract]
  • Viktar Asadchy, Aalto University, Finland
  • Younes Ra'di, Aalto University, Finland
  • Sergei Tretyakov, Aalto University, Finland
Bianisotropic media besides permittivity and permeability possess additional material parameters describing bianisotropic coupling. Here we consider the scenario when bianisotropic parameters are non-zero, while the permittivity and permeability tend to zero. Only a special case of reciprocal bianisotropic nihility was studied in the literature. In this work we generalize the concept of bianisotropic nihility to the case of non-reciprocal matter. We explore unique electromagnetic properties of bianisotropic nihility materials and consider their potential applications.
14:45 - 15:00 - Visualization of Three-Dimensional Bi-isotropic Metamaterial Parameter Space Oral [Show abstract]
  • Ari Sihvola, Aalto University, Finland
  • Ismo Lindell, Aalto University, Finland
<p> This presentation focuses on a particular subclass of bi-isotropic metamaterials which contain non-refractive, PEMC, and simple-skewon materials as special cases. The space spanned by the three essential parameters (degrees of magneto-electricity, non-reciprocity, and impedance) will be visualized as a spherical domain.</p>
13:30 - Acoustic Metamaterials II

Session chairperson(s): jose sanchez-dehesa

13:30 - 14:00 - Cloaking Structures for Different Types of Waves Invited oral [Show abstract]
  • Sebastien Guenneau, CNRS/Aix Marseille University, France
  • Elodie Georget, CNRS/Aix Marseille University, France
  • Redha Abdeddaim, CNRS/Aix Marseille University, France
  • Mohamed Farhat, KAUST, Saoudi Arabia
  • Stefan Enoch, CNRS/Aix Marseille University, France
<p> A cylindrical metallic cloak working for linear surface liquid waves [Farhat et al., Phys. Rev. Lett. 101, 134501, 2008] has the ability to also control electromagnetic waves via effective anisotropic permittivity. Numerics are in good agreement with microwave experiments and confirm cloaking from 2.6 GHz to 7 GHz for transverse electric field. Moreover the field is reduced by 10 to 30 dB inside the invisibility region.</p>
14:00 - 14:15 - Zak Phase and Topological Transition in One-dimensional Phononic Crystals Oral [Show abstract]
  • Guancong Ma, Hong Kong University of Science and Technology, Hong Kong
  • Meng Xiao, Hong Kong University of Science and Technology, Hong Kong
  • Zhiyu Yang, Hong Kong University of Science and Technology, Hong Kong
  • Ping Sheng, Hong Kong University of Science and Technology, Hong Kong
  • Zhao-Qing Zhang, Hong Kong University of Science and Technology, Hong Kong
  • Che Ting Chan, Hong Kong University of Science and Technology, Hong Kong
We report experimental determinations of Zak phase in one-dimensional phononic crystals. Band inversion and topological transition are identified. We use two methods to experimentally determine the Zak phase for the second bands. Interface states are observed at the interfaces separating two phononic crystals with different topological characteristics.
14:15 - 14:30 - Cancellation of Acoustic Waves in Scattering Media Oral [Show abstract]
  • Lars Kroon, Swedish Defence Research Agency, Sweden
<p> We find scattering cancellation in diffusive transport of acoustics waves propagating through strongly scattering media and for ballistic sound in the long wavelength limit.</p>
14:30 - 15:00 - Hybrid Resonance and the Total Absorption of Low Frequency Acoustic Waves Invited oral [Show abstract]
  • Min Yang, Dept. of Physics, HKUST, Hong Kong
  • Guancong Ma, Dept. of Physics, HKUST, Hong Kong
  • Songwen Xiao, Dept. of Physics, HKUST, Hong Kong
  • Zhiyu Yang, Dept. of Physics, HKUST, Hong Kong
  • Ping Sheng, Dept. of Physics, HKUST, Hong Kong
By creating two or more resonances on a structured thin membrane, it can be shown that a reflecting surface placed close by can cause the two neighboring resonances to hybridize at a frequency intermediate between the two. As the hybrid resonance’s wave amplitude profile is necessarily the linear superposition of the two original resonant eigenfunctions, the two degrees of freedom can mean that the surface-averaged hybrid resonance amplitude, and its variance, may be separately tunable. It is shown that whereas the average amplitude can serve to match impedance with air, the variance component is “deaf” and serves to absorb the incoming wave energy. The result is a deeply subwavelength structure that can totally absorb the incident wave at tunable frequencies.
15:00 - 15:30 - Coffee break
15:30 - 17:00 - Poster session I
15:30 - Poster Session I
1 - Metamaterial Fishnet Lens-antenna Based On Extraordinary Transmission Poster [Show abstract]
  • David Osuna, Public University of Navarra, Spain
  • Jorge Teniente, Public University of Navarra, Spain
  • Miguel Beruete, Public University of Navarra, Spain
In this work, gain enhancement of a metamaterial lens-horn antenna is shown when a fishnet lens is coupled to the horn’s aperture. The gain enhancement occurs in a narrow bandwidth corresponding to the Extraordinary Transmission (ET) resonance. These results demonstrate the feasibility to design smaller antennas with identical or even better radiation characteristics than standard horn antennas. Our design achieves a profiled reduction factor as high as 74% compared to a standard horn, with a gain of 15.8 dB.
2 - A Four-Vector Field Based Formulation for Bianisotropic Media Poster [Show abstract]
  • Michael Havrilla, Air Force Institute of Technology, USA
A four-vector field based formulation suitable for a special class of bianisotropic media is presented and advantages/drawbacks are discussed. It is shown the four-vector approach (compared to the known six-vector formalism) can offer enhanced physical insight and mathematical simplification due to reduced dimensionality. The Green’s functions of a parallel-plate waveguide filled with uniaxial electric and magnetic material is found to demonstrate the implementation of the four-vector approach. Future work is also discussed.
3 - Temperature Induced Topological Transition In Semiconductor Metamaterial Poster [Show abstract]
  • Kirill Koshelev, Saint-Petersburg State Polytechnical University, Russia
  • Andrey Bogdanov, National Research University for Information Technology, Mechanics and Optics (ITMO), Russia
We propose new type of temaperature tunable metamaterial based on semicon- ductor superlattice for THz applications. We have analyzed that the shape and topology of equal frequency contours depending on the external temperature. It was shown that transition from elliptical to hyperbolic regime, so called ”topological transition”, can be observed at room temperature.
4 - Improve Of Antenna Array Designed For Beamforming By Combining With Csrr Metasurface At 5.8 GHz for Satellite Applications Poster [Show abstract]
  • Gaston Perez, Universidad Tecnologica Nacional - Facultad Regional Buenos Aires, Argentina
Performance improvement of a planar antenna array system has been proposed, focused in give a solution to novel satellite applications. The need of low profile, high gain antenna with strict constraints make of this an excellent challenge where apply metamaterial approach. Simulation results has been compared with radiation measurements.
5 - A Reconfigurable Metamaterial-MEMS Antenna for Sensing Applications Poster [Show abstract]
  • Georgina Rosas, INAOE, Mexico
  • Roberto Murphy, INAOE, Mexico
  • José Luis Olvera, INAOE, Mexico
  • Wilfrido Moreno, USF, USA
<p> We present a tunable metamaterial antenna using RF-MEMS (radio micro-electromechanical systems), based on a parallel-plate capacitor within a CRLH-TL structure (composite right-left hand transmission line), which can be used as a sensor. The device is compatible with micromachining fabrication processes, and it is based on electrostatic actuation.</p>
6 - Design of a Dual Band Transparent Metamaterial Absorber Poster [Show abstract]
  • Jinpil Tak, Hanyang University, Korea (South)
  • Youngtaek Hong, Hanyang University, Korea (South)
  • Jaehoon Choi, Hanyang University, Korea (South)
In this paper, a transparent metamaterial (MTM) absorber in dual band application is proposed. The absorber is designed using on indium tin oxide (ITO) film for transparency. The unit cell of the proposed absorber consists of an electric LC (ELC) resonator and a ground plate, which are printed on opposite sides of the glass substrate. The ELC resonator comprises two symmetric triangular split ring resonators (TSRRs) for 8 GHz band and another two symmetric TSRRs for 12 GHz band.
7 - One Way Helical Electromagnetic Wave Propagation Supported By Magnetized Plasma Poster [Show abstract]
  • BIAO YANG, University of Birmingham, United Kingdom
  • MARK LAWRENCE, University of Birmingham, United Kingdom
  • WENLONG GAO, University of Birmingham, United Kingdom
  • QINGHUA GUO, University of Birmingham, United Kingdom
  • SHUANG ZHANG, University of Birmingham, United Kingdom
In this paper we reveal the presence of photonic one-way helical surface states in a simple natural system - magnetized plasma.
Media link(s):

 

  arXiv:1410.4596

 

 

8 - Numerical Analysis Of Metamaterial Insertions For Mode Damping In Parasitic Particle Accelerator Cavities Poster [Show abstract]
  • Alessandro Danisi, European Organization for Nuclear Research (CERN), Switzerland
  • Alessandro Masi, European Organization for Nuclear Research (CERN), Switzerland
  • Roberto Losito, European Organization for Nuclear Research (CERN), Switzerland
Discontinuities in the geometry of a beam pipe can represent serious issues for the stability of the beam in a particle accelerator. Many devices installed along the machine introduce parasitic cavities which are undesired and give rise to wake fields and resonances, which on turn contribute in de-stabilizing the beam. These resonances are often damped using dispersive or resistive materials placed in specific points in the cavity. This paper analyzes numerically the possibility to use of simple metamaterial insertions to perform the mode damping.
9 - Theory Of Second Harmonic Generation From Metallic Arrays Of Rectangular Holes Poster [Show abstract]
  • Sergio G Rodrigo, Universidad de Zaragoza - Centro Universitario de la Defensa de Zaragoza - Instituto de Ciencia de Materiales de Aragón, Spain
  • Victor Laliena, Universidad de Zaragoza - Instituto de Ciencia de Materiales de Aragón, Spain
  • Luis Martín-Moreno, Universidad de Zaragoza - Instituto de Ciencia de Materiales de Aragón, Spain
We investigate Second Harmonic Generation in the context of extraordinary optical transmission. We show that the radiation pattern and the transmission efficiency of second harmonic light in metallic arrays of rectangular holes strongly depends on the electromagnetic modes excited at both the fundamental and second harmonic frequencies. Second harmonic generation is constrained by the spatial distribution of these fields and their ability to couple with radiation. In particular, the symmetry properties of the second harmonic fields are crucial in the near-to-far field coupling process. For instance, we show how light generated at second harmonic can excite electromagnetic modes otherwise inaccessible in the linear regime under normal incidence illumination. By reciprocity, these modes can only couple to off-normal diffraction orders in the lattice. Finally, we demonstrate that the existence of dark surface plasmons at the fundamental field can be identified through a non-invasive method, which is precisely based on the singular symmetry properties of second harmonic.
10 - A mode coupling model for meta-molecules Poster [Show abstract]
  • Benjamin Vial, Queen Mary, University of London, United Kingdom
We develop a model for the coupling of leaky eigenmodes in meta-molecules The results show a good agreement with full-wave simulations. This model provides interesting physical insights on the coupling scheme and pave the way for the design and optimization of resonances in more complicated systems.
11 - Metal gratings with slits and grooves for transmission control: An analytical approach Poster [Show abstract]
  • Carlos Molero, Department of Applied Physics 1, University of Seville, Spain
  • Francisco Medina, Department of Electronics and Electromagnetics, University of Seville, Spain
  • Raul Rodríguez-Berral, Department of Applied Physics 1, University of Seville, Spain
  • Francisco Mesa, Department of Applied Physics 1, University of Seville, Spain
The conventional grating consisting of a periodic distribution of transmission slits made in a thick metal slab is modified by adding grooves at both sides of the metal slab in order to introduce transmission zeros below and above the Fabry-Perot transmission bands thus improving frequency selectivity. The analysis of this structure is carried out using an analytical model that involves transmission lines and lumped circuit elements. The values of the electrical parameters of the model can be obtained in closed form. Numerical results provided by finite-elements simulations are used to check the validity of the model and to illustrate the applications of the proposed structure
12 - Retrieving the Polarizability Tensor of Wire Media Poster [Show abstract]
  • Parry Y. Chen, Tel Aviv University, Israel
  • Jacob Ben-Yakar, Tel Aviv University, Israel
  • Yonatan Sivan, Ben Gurion University, Israel
  • David J. Bergman, Tel Aviv University, Israel
We retrieve the full polarizability tensor of an infinitely long cylinder illuminated by plane waves under oblique incidence. Two mathematically equivalent representations of the tensor are obtained: a diagonal form when the polarizations of the impinging light are considered separately, and a non-diagonal form when polarizations are combined. This interconvertibility reveals the precise physical origins of the predicted magneto-electric coupling, being a necessary consequence of the difference in the scattering of transverse electric and transverse magnetic polarizations. All quantitative and qualitative properties of the magneto-electric coupling can be traced to this simple difference, such as its unusual scaling and symmetry properties.
13 - All-dielectric Broadband Microwave Polarization Conversion based on Form Birefringence Poster [Show abstract]
  • Maria Lorente-Crespo, Heriot-Watt University, United Kingdom
  • Guillem C. Ballesteros, Heriot-Watt University, United Kingdom
  • Carolina Mateo-Segura, Heriot-Watt University, United Kingdom
An all-dielectric multilayer polarization converter based on form birefringence is analytically synthesized and designed at microwave frequencies. Form birefringence enables to independently control the transmission characteristics of the parallel and perpendicular components of a linearly polarized incident plane-wave, thus achieving polarization conversion. The performance of the converter is demonstrated using 3D full wave simulations proving an axial ratio lower than 3 dB within the X-band whilst offering good angular stability.
14 - Symmetry-protected Transport in Pseudospin-polarized Waveguide Poster [Show abstract]
  • Wen-Jie Chen, Hong Kong University of Science & Technology, Hong Kong
Spin-polarized one-way transport has been proposed and demonstrated in time-reversal invariant photonic topological insulators, where the pseudo-spin is locked to the linear momentum. These pseudospin states are carried in the carefully designed photonic crystals or metamaterials that are usually difficult to fabricate. Here, we propose and experimentally demonstrate a spin-filtered waveguide without using any bulk material. The pseudospin is enforced simply by imposing boundary conditions. Wave propagation in the waveguide is robust against deformations that do not induce spin flip.
15 - Design of Broadband and Polarization-independent Metamaterial Absorber Using N-Helix No show [Show abstract]
  • Yogendra Kumar prajapati, Motilal Nehru National Institute of Technology, Allahabad, India
  • M. Raviteja, Motilal Nehru National Institute of Technology, Allahabad, India
  • Sajal Agrawal, Motilal Nehru National Institute of Technology, Allahabad, India
  • Alka Verma, Motilal Nehru National Institute of Technology, Allahabad, India
We report the design, simulation and measurement of a quad helix metamaterial absorber that works for a wider range of wavelengths and independent to changes in the polarization of the incident light. FDTD method is used for the modeling of the design. From the obtained results, it can be state that the proposed design shows an average absorbance of 87.48% in the wavelength range of 300 to 1700 nm and an absorption peak of 96.6% at 350 nm. The polarization independence property can be explained by circular dichroism exhibited by the helices. Systematic study of the changes in absorption efficiency with variations in the geometric parameters is also carried out.
16 - A Printed Monopole Loaded With a non-Foster Matching Network in the VHF band; Radiation Considerations Poster [Show abstract]
  • Fernando Albarracin-Vargas, Universidad Carlos III in Madrid, Spain
  • Daniel Segovia-Vargas, Universidad Carlos III in Madrid, Spain
Loading an electrically small antenna (ESA) with non-Foster active matching networks (MN) is an interesting way to obtain broad impedance bandwidth. Locating one of these active networks in the antenna structure itself can be advantageous for compact designs. The introduction of the so called sensitivity (Sens) parameter allows finding a suitable placement for the MN. Some radiation considerations can be described, according to the antenna plus MN topology chosen at a low sensitivity point.
17 - Frequency-Independent Resonance Condition for Annular Ring Microstrip Antenna on Metamaterial Substrate Poster [Show abstract]
  • Yeqin Huang, Western Carolina University, USA
A theoretical analysis of an annular ring microstrip antenna with metamaterial substrate is presented. The approach is based on the cavity model. By including in the substrate a conventional dielectric material and a metamaterial possessing negative permittivity and permeability, a frequency independent resonance condition is found over a continuous band of frequencies.
18 - Isofrequency Surfaces and Transmission Properties of Generalized Hyperbolic Metamaterials Poster [Show abstract]
  • Vladislav Popov, Belarusian State University, Belarus
  • Andrey Novitsky, Belarusian State University, Belarus
We propose the concept of generalized hyperbolic metamaterials (GHMMs) composed of anisotropic slabs. We develop effective medium theory for layered GHMMs and show that it is possible to obtain any sign combination on the diagonal of the effective medium permittivity tensor.
19 - Perpendicularly Magnetized Antidot Lattice as a Two-Dimensional Magnonic Metamaterial Poster [Show abstract]
  • Perla Malagò, Department of Physics and Earth Sciences, University of Ferrara, Italy
  • Loris Giovannini, Department of Physics and Earth Sciences, University of Ferrara, Italy
  • Roberto Zivieri, Department of Physics and Earth Sciences, University of Ferrara, Italy
The effective properties of a perpendicularly magnetized two-dimensional antidot lattice having periodicity and hole size in the nanometric range are studied. The effective rules involving the effective wavelength and the effective wave vector of collective modes characterize these magnonic crystals as magnonic metamaterials.
20 - Multiscale theory for periodic metamaterials and impact of geometric chirality from 3D to 1D Poster [Show abstract]
  • Carlo Rizza, Department of Science and High Technology, University of Insubria, Italy
  • Alessandro Ciattoni, CNR-SPIN, Italy
<p> We discuss a general and compact first-principles effective medium theory, based on a multiscale approach, for describing the homogenized electromagnetic response of a periodic metamaterial. As an intriguing and unexpected result, we prove that electromagnetic chirality can occur in 1D periodic composites whose inclusions are achiral.</p>
21 - A Design of Dual Band 90° Polarization Using Chiral Metamaterial Based on Four “V” resonators Poster [Show abstract]
  • Hailin Cao, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
  • Huan Chen, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
  • Jianshuo Liang, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
  • Xiaodong Wu, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
  • Yuwei Pi, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
  • Lisheng Yang, Key Laboratory of Aerocraft Tracking, Telemetering & Command and Communication, Chongqing University, China
In this paper, we propose a chiral metamaterial structure that enables a dual-band 90° polarization rotator effect. The bilayered chiral metamaterial is composed by twist different size “V” antenna resonators in four-fold rotation symmetry. Analysis also shows such asymmetric twist structure can be attributed to the induced asymmetric transmission that support strong optical activity.
22 - Metamaterial Mirrors with a Twist Poster [Show abstract]
  • Eric Plum, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We demonstrate a novel type of mirror, which reflects one circular polarization without reversing its handedness, while being a perfect absorber for the other circular polarization. This ultimate 2D-chiral effect enables circularly polarized cavities and lasers as well as novel spectroscopic techniques.
23 - Performance Enhancement of Novel Square Fractal Antenna using Metamaterial Withdrawn [Show abstract]
  • Suganthi Sellakkutti, Christ University(Faculty of Engg.), Kengeri Campus, Bangalore, India
  • Raghavan Singaravelu, National Institute of Technology, Trichy, India
Enhanced performance of new metamaterial(MTM) loaded, CoplanarWaveguide(CPW) fed miniaturized Square Fractal Antenna(SFA) is reported. Design and simulation were performed using HFSS simulation software. Proposed antenna size is 23mmx23mm on FR4 substrate. SFA resonates at triple frequencies whereas metamaterial antenna resonates at four frequencies with improved gain and more focused radiation.
24 - Enhancing Electromagnetic Transmission through Biological Tissues at Millimeter Waves Using Subwavelength Metamaterial Antireflection Coatings Poster [Show abstract]
  • Helena Cano-Garcia, King's College London, Medical Wireless Sensing Ltd., United Kingdom
  • Panagiotis Kosmas Kosmas, King's College London, United Kingdom
  • Efthymios Kallos, Medical Wireless Sensing Ltd., Metamaterial Technologies Inc., United Kingdom, Canada
This paper presents simulation results of two different subwavelength metamaterial-based antireflection coatings operating at millimeter waves. The first design minimizes the reflection from a slab of acrylic and the second design minimizes the reflection from a slab of human tissue comprising skin-blood-skin layers. These designs achieve a relative reduction in the reflected power by 99.5% (23 dB) and 99.9% (35 dB), respectively, at 60 GHz. The overall transmitted power is enhanced by up to 39%, limited by the inherent losses in the tissues.
25 - Full-Wave Analysis of Three-Dimensional Optical Metamaterials Involving Deformed Poster [Show abstract]
  • Bariscan Karaosmanoglu, Middle East Technical University, Turkey
  • Akif Yılmaz, Middle East Technical University, Turkey
  • Özgür Ergül, Middle East Technical University, Turkey
We present computationally intensive electromagnetic analysis of metamaterials involving deformed nanowires. Random deformations are introduced to modify perfect nanowires in order to investigate the effect of geometric deviations on scattering properties of optical metamaterials. Numerical simulations of realistic structures of finite extent are performed accurately and efficiently using a rigorous simulation environment based on surface formulations and the multilevel fast multipole algorithm (MLFMA). Statistically common results of deformations, such as forward-scattering enhancements, are demonstrated on realistic metamaterial models.
26 - Design Of A Subwavelength Flat Focusing Lens And Simulation Of Its Performance In The Presence Of Biological Tissues At Millimetre Waves Poster [Show abstract]
  • Jason Pereira, University College London, United Kingdom
  • Efthymios Kallos, Metamaterial Technologies Incorporated, United Kingdom
A flat, metamaterial lens was designed for millimetre waves. A system with a pair of these lenses placed on either side of biological tissue, consisting of a 2-layer skin-blood structure, was simulated. The directivity was enhanced by 9.5 dB compared to the case without the lenses.
27 - Extended Jones formalism for perfectly conducting metallic polarizers : Application to polarization properties of single or stacked twisted metamaterials Poster [Show abstract]
  • Xavier Romain, Femto-ST Institute, France
  • Philippe Boyer, Femto-ST Institue, France
  • Fadi Issam Baida, Femto-ST Institue, France
Based on a renewed Jones formalism, we study single or stacked metallic metamaterials for the terahertz domain. This allows us to theoretically investigate with a simple and analytical model several polarization applications such as the design of half-wave plates an polarization converters, and a new formulation of the Malus Law for metallic polarizers.
28 - Ferromagnetic Resonance Of A Single Chiral Meta-Molecule Of Permalloy Poster [Show abstract]
  • Toshiyuki Kodama, Graduate School of Materials Science, Nara Institute of Science and Technology, Japan
  • Satoshi Tomita, Graduate School of Materials Science, Nara Institute of Science and Technology, Japan
  • Nobuyoshi Hosoito, Graduate School of Materials Science, Nara Institute of Science and Technology, Japan
  • Hisao Yanagi, Graduate School of Materials Science, Nara Institute of Science and Technology, Japan
We fabricated and investigated micrometer-sized, three-dimensional chiral meta-molecules (CMMs) of ferromagnetic metal, permalloy. The angle-resolving measurement showed that a resonance at a lower magnetic field did not shift, while another resonances shifted significantly depending on the direction of the magnetic field. Possible origins of these resonance were discussed.
29 - Metamaterial Lens Design for 3D Printing Poster [Show abstract]
  • ILSUNG SEO, Agency for Defense Development, Korea (South)
  • Junhyun Kim, Yonsei University, Korea (South)
  • Seungjae Choi, Yonsei University, Korea (South)
  • Dongheok Shin, Yonsei University, Korea (South)
  • Kyoungsik Kim, Yonsei University, Korea (South)
3D printing technology provides the precise fabrication for complicated structure which cannot be realizable in the past. With this noble technology, we can make sophisticated metamaterials in the microwave regime. By transformation optics and effective medium theory, we designed isotropic and graded index lens which collimates the TE spherical wave. Our design technique optimizes values of permittivity which can be realized by 3D printing.
30 - Observation of Self-Modulation Spin-Wave Instability in a One-Dimensional Magnetic Metamaterial Poster [Show abstract]
  • Andrey Drozdovskii, Saint Petersburg Electrotechnical University LETI, Russia
The emergence of the self-modulation instability of monochromatic microwave spin waves excited in a periodic magnetic film structure, a magnetic metamaterial – magnonic crystal, has been observed. The magnonic crystal was fabricated by chemically etching the surface a single-crystal yttrium–iron garnet film. The self-modulation instability has been observed at the frequencies corresponding to the band gaps of the spin-wave spectrum of the magnonic crystal caused by Bragg resonances.
31 - Simultaneous Enhancements of Absorption and Emission of Upconversion Layer by Using Metal-Insulator-Metal structure Poster [Show abstract]
  • Soon-Hong Kwon, Department of Physics, Chung-Ang University, Korea (South)
We propose a metal-insulator-metal (MIM) structure that enhances absorption and emission process of lanthanide upconversion simultaneously. The MIM structure consists of metal strips on the thin upconversion material layer coated on the metal substrate. Two plasmonic MIM modes can enhance absorption and emission process, respectively. Therefore, the efficiency of the upconversion can be greatly increased by resonant absorption and spontaneous emission rate enhancement.
32 - Improve Satellite Navigation System Terminal Antennas with Metamaterial Structures Poster [Show abstract]
  • Shouzheng Zhu, East China Normal University, China
  • Shunyu Fang, East China Normal University, China
  • Zhigang Liu, East China Normal University, China
Put your abstract here Two metamaterial based satellite navigation terminal antennas are proposed in this paper. One is multi-frequency RHCP microstrip antenna, the other is a half-mode cavity backed SIW RHCP antenna. The RIS and CSRR are used to improve antenna performance and diminish antenna size.
33 - Broadband High Gain Meta-material based Resonant Cavity Antenna. Poster [Show abstract]
  • SUDHAKAR SAHU, KIIT University, Bhubaneswar, India, India
  • SATYADEEP DAS, KIIT University, Bhubaneswar, India, India
A broadband high gain planar meta-material based Resonant Cavity Antenna (RCA) is proposed operating at C-band. The RCA is modelled using simple ray tracing method. The unit cell metamaterial consists of Artificial Magnetic Conductor (AMC) and square patch laminated on either side of low loss commercial dielectric material of dielectric constant 2.4 & thickness 0.813mm, is used as the superstrate to designed RCA. Square patch is capacitive type and that AMC as inductive. Effects of the reflection phase of the substrate decides the high gain of the antenna. A cylindrical dielectric resonator antenna (CDRA) has been used as the primary radiator. The metamaterial unit cell structure is characterized and its effective material parameters showing meta-material characteristics are extracted through its S-parameters simulation. The proposed antenna achieves 22.4dBi gain with 2 layers of 4x4 array superstrate with bandwidth of around 2.8GHz. The proposed 2 layer structure will be optimized for height of the cavity using Particle Swam Optimization technique, whose result will be published at the conference.
34 - Magneto-chiral Effects at Microwave Frequencies by a Single Metamolecule Poster [Show abstract]
  • Satoshi Tomita, Nara Institute of Science and Technology, Japan
  • Kei Sawada, RIKEN SPring-8 Center, Japan
  • Andrey Porokhnyuk, Kyoto Institute of Technology, Japan
  • Tetsuya Ueda, Kyoto Institute of Technology, Japan
We study magneto-chiral (MCh) effects for the X-band microwaves by a single metamolecule consisting of a copper chiral structure and ferrite rod. The nonreciprocal differences in refractive indices are evaluated to be 10^{-3} at 200mT, which are much larger than those by MCh effects of natural chiral molecules.
35 - Storage of Electromagnetic Waves in Metamaterial via Conductivity Modulation Poster [Show abstract]
  • Shinji Tohi, Kyoto University, Japan
  • Toshihiro Nakanishi, Kyoto University, Japan
  • Masao Kitano, Kyoto University, Japan
We propose a method to dynamically control electromagnetically induced transparency like effect in a metamaterial by conductivity modulation for the storage of electromagnetic waves. The storage and retrieval of electromagnetic waves are experimentally demonstrated in microwave region using the metamaterial loaded with switching diodes.
36 - Probing Electric and Magnetic Resonances of Silicon Nanodisks by Third-Harmonic Generation Poster [Show abstract]
  • Elizaveta Melik-Gaykazyan, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Maxim Shcherbakov, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Alexander Shorokhov, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Dragomir Neshev, The Australian National University, Research School of Physics and Engineering, Nonlinear Physics Centre, Australia
  • Isabelle Staude, The Australian National University, Research School of Physics and Engineering, Nonlinear Physics Centre, Australia
  • Ben Hopkins, The Australian National University, Research School of Physics and Engineering, Nonlinear Physics Centre, Australia
  • Andrey Miroshnichenko, The Australian National University, Research School of Physics and Engineering, Nonlinear Physics Centre, Australia
  • Igal Brener, Sandia National Laboratories, Center for Integrated Nanotechnologies, United States
  • Andrey Fedyanin, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Yuri Kivshar, The Australian National University, Research School of Physics and Engineering, Nonlinear Physics Centre, Australia
We report on the experimental results of the third-harmonic generation spectroscopy of silicon nanodisks excited at their electric and magnetic dipolar resonances. Efficient third-harmonic generation enhanced by the magnetic response of the nanodisks is observed, whereas the electric dipolar resonance yields less nonlinear conversion, which is explained by the lower penetration depth of the up-converted radiation into silicon.
37 - Effects of Optical Joule Heating in Metamaterial Absorber: A Non-Linear Recursive Feedback Optical-Thermodynamic Multiphysics Study Poster [Show abstract]
  • Sungjun In, Photonic Systems Laboratory, School of EECS, Seoul National University, Korea (South)
  • Namkyoo Park, Photonic Systems Laboratory, School of EECS, Seoul National University, Korea (South)
In this study, by using a non-linear recursive feedback optical-thermodynamic numerical analysis we show that optical absorption induced temperature change could affect the permittivity of metal and thus diminish the efficiency of metamaterial absorber.
38 - Is Point Dipole Approximation Applicable To All-dielectric Ring Metamaterials? Poster [Show abstract]
  • Svetlana Kuznetsova, University of Niznhy Novgorod , Russia
  • Andrei Andryieuski , Technical University of Denmark, Denmark
  • Andrei Lavrinenko, Technical University of Denmark, Denmark
We investigate the applicability of the point electric and magnetic dipoles approximation to dielectric meta-atoms on an example of the dielectric ring metamaterial. Despite large electrical size of the high-dielectric meta-atoms, the dipole approximation allows for prediction of the metamaterials properties well for the rings diameter up to approximately 0.8 of the lattice constant.
39 - Coupled-mode Theory Approach for Analisys of Resonant Transmission Line Poster [Show abstract]
  • Vojislav Milošević, University of Belgrade, Institute of Physics Belgrade, Serbia
  • Goran Isić, University of Belgrade, Institute of Physics Belgrade, Serbia
  • Branka Jokanović, University of Belgrade, Institute of Physics Belgrade, Serbia
In this paper we apply the framework of temporal coupled-mode theory on the case of resonant transmission line (TL) consisting of microstrip line coupled to split-ring resonators (SRR). In particular, we study the system which breaks the mirror symmetry by moving the slit in the SRR. The combination of two such SRRs in anti-symmetric configuration is shown to posses two orthogonal resonant modes which both couple to the line with controllable coupling strengths and corresponding Q-factors. Such an approach could prove to be useful in microstrip filter design, classical electromagnetically induced transparency (EIT) and slow wave structures.
40 - Performance enhancement of microstrip patch antenna using a periodic EBG structure for WLAN application Poster [Show abstract]
  • Narimane KORCHI, Houari Boumediene University of Sciences and Technology, Instrumentation Laboratory, Algeria
  • Rachid OUSSAID, Houari Boumediene University of Sciences and Technology, Instrumentation Laboratory, Algeria
In this paper we have investigated the performance of a microstrip patch antenna using square Two-dimensional EBG structure. The EBG structure is used as substrate and superstrate. The proposed Antenna is designed at an operating resonant frequency of 4.65GHz covering the band of WLAN applications. From the comparison of three different configurations of patch antenna with homogeneous substrate, with EBG substrate and with EBG substrate and superstrate, it is shown that performance of the patch antenna is enhanced with the use of EBG substrate as well as with superstrate. The simulation has been performed using CST Microwave Studio Suite.
41 - Impact Assessment of Bias Network Topology on the Performance of Electrothermally Reconfigurable Metamaterials Poster [Show abstract]
  • Antonios Lalas, Aristotle University of Thessaloniki, Greece
  • Nikolaos Kantartzis, Aristotle University of Thessaloniki, Greece
  • Theodoros Tsiboukis, Aristotle University of Thessaloniki, Greece
The behavior of electrothermally controlled metamaterials, when implemented with different bias networks, is investigated in this paper. The proposed devices obtained from the combination of electrothermal actuators with an SRR can be actuated by employing two discrete topologies of the bias lines. These components exhibit MNG as well as DNG performance, along with bandwidth tunability.
42 - Local Field Enhancement Induced by Collective Interactions in Disordered Metamaterials Poster [Show abstract]
  • Stewart Jenkins, University of Southampton, United Kingdom
  • Nikitas Papasimakis , University of Southampton, United Kingdom
  • Salvatore Savo, Harvard University, United States
  • Janne Ruostekoski, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We present a novel framework for the analysis and engineering of light enhancement in disordered metamaterials. This framework exploits interactions between resonators. Despite Ohmic losses which tend to suppress interactions, we show that intense light confinement can be achieved in optical plasmonic metamaterials. This framework shows excellent agreement with experimental observations.
43 - Laser with PT Symmetry Breaking in Polarization Space Poster [Show abstract]
  • Alexander Zyablovsky, All-Russia research institute of automatics, Russia
  • Alexander Dorofeenko, Institute for Theoretical and Applied Electromagnetics RAS, Russia
  • Alexey Vinogradov, Institute for Theoretical and Applied Electromagnetics RAS, Russia
  • Alexander Pukhov, Institute for Theoretical and Applied Electromagnetics RAS, Russia
  • Eugeniy Andrianov, All-Russia research institute of automatics, Russia
  • Alexander Lisyansky, Queens College of the City University of New York, USA
<p> We study the steady-state lasing of the laser that contains anisotropic and gyrotropic layers and the active medium with linear anisotropy. We demonstrate that in the laser observed PT-symmetry breaking in polarization space. PT-symmetry breaking results to suppression of lasing.</p>
44 - New Inductor Loaded Composite Right Left hand Impedance Transformer for UWB Wireless Applications Poster [Show abstract]
  • Mahmoud Abdalla, MTC College, Egypt
  • Ahmed F. Daw, MSA university, Egypt
  • Hadia M. Elhennawy, Ain Shams University, Egypt
<p> A compact ultra wide band impedances transformer based on new configuration of composite right/left handed transmission line is presented. The proposed design introduces ultra wide band pass frequencies extended from 2 GHz up to 11 GHz with perfect matching transmission coefficient. However, the whole topology is designed using new loaded inductor configuration of CRLH. This L-CRLH is implemented using loaded inductor to construct shunt tank of gap capacitor and strip inductor, and shunt tank formed using patch capacitor with shorted strip inductor. Furthermore, the paper present analytical study, equivalent circuit model, 3D fall wave simulation and fabrication measurement results. The results shows perfect insertion losses equal 0.2 dB and return losses reach to 19 dB within extended band pass band from 3 GHz up to 12 GHz. Moreover, it introduces very compact size equal 2.7×8.6 mm2 (58% size reduction compared to single frequency /4 transformer)</p>
45 - Knowledge-Based Systems are a Future of Metamaterials World Poster [Show abstract]
  • Victor Abrukov, Chuvash State University, Russia
Knowledge-Based System is a tool that: contains all relationships between all variables of the object; allows to calculate the values of one part of variables through others; allows to solve direct and inverse problems.
46 - A Compact High Selective Coupled Gap CRLH TL Based Bandpass Filter Poster [Show abstract]
  • Mahmoud Abdalla, MTC College, Egypt
  • A. Y. Hassan, MSA University, Egypt
  • A. M. Galal Eldin, MSA University, Egypt
<p> This paper exhibits a new compact high selective gap bandpass filter designed for the 5 GHz WiMAX service. The filter is based on four order coupling of coupled gap composite right left handed transmission line resonators. The composite right left handed resonators is designed to demonstrate a zeroth order mode at the passband center frequency (5.25 GHz) for filter size reduction. The filter has a compact size 20×20mm2. The design concepts of the coupled cell and the whole filter response are discussed and verified using full electromagnetic full wave simulations and confirmed by experimental measurements. The results</p>
47 - Ultrathin Quadrifilar Spirals and Spiral Ensembles Poster [Show abstract]
  • Nina Meinzer, University of Exeter, United Kingdom
  • Roy Sambles, University of Exeter, United Kingdom
  • Alastair Hibbins, University of Exeter, United Kingdom
We investigate the eigenmodes of both ultrathin quadrifilar spirals and ensembles made up of such spirals by comparing experimental near-field scans with numerical finite-element models. These modes can be understood in the picture of electric and magnetic localized spoof plasmons.
48 - Gain Enhancement of Dipolar Antennas Employing EBG Media Poster [Show abstract]
  • Silvio Ceccuzzi, Roma Tre University, Italy
  • Cristina Ponti, Roma Tre University, Italy
  • Giuseppe Schettini, Roma Tre University, Italy
Different methods based on Electromagnetic Band-Gap materials are used to enhance the directivity of dipoles with a back reflector and compared. The EBG media consist of a periodic arrangement of dielectric cylinders that are excited either inside or at the edge of the band-gap by a half-wavelength dipole, while a ground plane with finite size acts as a reflector against backscattering. Strengths and weaknesses of the two methods are assessed considering both square and triangular lattices.
49 - Electrically Tunable Nanostructures and Metamaterials on ITO Substrate Withdrawn [Show abstract]
  • Ivan Shishkin, ITMO University, Russia
  • Andrey Bogdanov, Ioffe Institute , Russia
  • Andrey Malyshev, GISC, Universidad Complutense de Madrid, Spain
We show that localized plasmon resonances of single metal nanoparticle and nanohole or their two dimensional arrays fabricated in the vicinity of an ITO surface can be efficiently tuned by an electrostatic field. Results of our theoretical analysis and computer simulation show that the shift of plasmon resonance frequency is about several tens of nanometers that is comparable with a width of the resonance.
50 - Influence of Substrate on Broadband Microwave Absorption of Metamaterial Absorbers Composed of Multi-Scaled Split Cut Wires Poster [Show abstract]
  • Sung-Soo Kim, Department of Advanced Materials Engineering, Chungbuk National University, Korea (South)
  • Joon-Hee Lim, Department of Advanced Materials Engineering, Chungbuk National University, Korea (South)
  • Yo-Han Ryu, Department of Advanced Materials Engineering, Chungbuk National University, Korea (South)
Multi-band or broadband power absorption has been obtained from multiple arrangements of split cut wires (SCWs) of different length on grounded dielectric substrate. Computational tools were used to model the interaction between electromagnetic waves and materials with the SCWs structure. The multi-resonance of SCWs is found to be greatly dependent on substrate materials (FR4, air). Insertion of an air layer at the bottom side of the ground plane has the effect of broadening the absorption band, due to the effect of increasing the dielectric resistance by increasing substrate thickness and by decreasing effective permittivity. For the multi-resonance structure of 13 SCWs, a broad bandwidth (6.3-7.6 GHz with respect to 80% absorbance) is predicted. The simulation result is in good agreement with experimental result measured by free space method.
51 - Design the MTM Antennas with Good Specifications Poster [Show abstract]
  • Mohammad Alibakhshi-Kenari, Shahid Bahonar University of Kerman, Iran
<p> In this paper, two novel ultra wideband (UWB) minimized metamaterial antennas based on the composite right/left-handed transmission line (CRLH-TL) structures are designed.Overall sizes of the CRLH antennas are 24.8mm by 9.5mm by 1.6mm and 37.2mm by 9.25mm by 1.6mm, respectively.</p>
52 - Metamaterial Inspired Filter Design at Microwave Frequency Poster [Show abstract]
  • Subal Kar, University of Calcutta, India
  • Amitesh Kumar, SAMEER Kolkata Centre, India
  • Arijit Majumder, SAMEER Kolkata Centre, India
  • S. K. Ghosh, University of Calcutta, India
  • S. Saha, University of Calcutta, India
  • S. S. Sikdar, University of Calcutta, India
  • T. K. Saha, University of Calcutta, India
Metamaterial inspired unit cells like CRLH and SRR has been used to realize microwave filter in microstrip and waveguide systems respectively. CRLH based filter designed at 2.45 GHz provides an insertion loss of 1.6 dB with harmonic suppression up to 10 GHz with 67% size reduction when compared with a conventional edge-coupled band-pass filter designed around the same frequency. One dimensional (1-D) SRR matrix loaded in a waveguide shows the possibility of realizing a stop-band with sharp notch in the pass-band and stop-band in the pass-band of normal rectangular waveguide with tailoring of the dimensions of SRR unit cells.
53 - Epsilon-near-zero Fishnet Metamaterials Poster [Show abstract]
  • Svetlana Kurilkina, Institute of Physics of National Academy of Sciences of Belarus, Belarus
  • Mohammed Binhussain Binhussain , The National Center for Building System of The King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia
  • Vladimir Belyi, Institute of Physics of National Academy of Sciences of Belarus, Belarus
  • Nikolai Kazak, Institute of Physics of National Academy of Sciences of Belarus, Belarus
The possibility is shown and conditions are obtained for creation of epsilon-near-zero fishnet metamaterials based on the multilayered metal-dielectric nanostructure with implemented metallic nanocylinders. It is established the possibility of realization of diffraction-free and low-loss regime of light beam propagation in these media.
54 - Generation of Bessel Plasmon-polaritons on the Boundary of Epsilon-near-zero Metamaterials Poster [Show abstract]
  • Svetlana Kurilkina, Institute of Physics of National Academy of Sciences of Belarus, Belarus
  • Mohammed Binhussain, The National Center for Building System of The King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia
  • Vladimir Belyi, Institute of Physics of National Academy of Sciences of Belarus, Belarus
  • Nikolai Kazak, Institute of Physics of National Academy of Sciences of Belarus, Belarus
The features are considered of the excitation of Bessel plasmon polaritons at the boundary of a hyperbolic absorbing metamaterial with near zero permittivity that is based on the dielectric matrix with metal nanorods embedded into it orthogonally to the surface. The possibility is shown and the conditions are determined of the changes of radial energy flux direction in the Bessel plasmon polaritons excited on the surface of "isotropic medium - hyperbolic metamaterial."
55 - Influence of Magnetic Resonance in Ferrite on the Nonlinear Properties of Split Ring Resonator Poster [Show abstract]
  • Aleksey Girich, Institute of Radiophysics and Electronics NAS of Ukraine, Ukraine
<p> Experimentally demonstrated the influence of electron magnetic resonance in ferrite on the nonlinear properties of meta-atoms. Experimentally demonstrated the possibility of the resonant tuning the resonant frequency of SRR loaded with ferrite using the microwave power and magnetic field. Shown that when the magnetic field reaches a certain magnitude, the nonlinearity of meta-atom increases and the resonance curve becomes disturbed and demonstrates a multistability.</p>
56 - Relaxation time mapping of single quantum dots and substrate background fluorescence Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
  • Ekaterina Pshenay-Severin, FSU Jena, Germany
  • Ivan Mukhin, State Academic University, St.-Petersburg, Germany
  • Stefan Fasold, FSU Jena, Germany
  • Reinhard Geiss, FSU Jena, Germany
  • Andrea Steinbrück, FSU Jena, Germany
  • Rachel Grange, FSU Jena, Germany
  • Thomas Pertsch, FSU Jena, Germany
We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates, acting as a hot-spot enabling the plasmon supported fluorescence enhancement of gold.
57 - Design Of Dual Band Bandpass Filter Using Double ENZ Waveguide Poster [Show abstract]
  • Milos Radovanovic, Institute of Physics, University of Belgrade, Serbia
  • Branka Jokanovic, Institute of Physics, University of Belgrade, Serbia
  • Nebojsa Vojnovic, Institute of Physics, University of Belgrade, Serbia
<p> Here we show a novel design of a dual-band second-order bandpass filter, with two transmission zeros between pass bands. Filter is designed combining resonances of two ENZ waveguides, which are connected in parallel between standard rectangular waveguides. Filter is simulated and optimized using mode matching (MM) and finite elements (FEM) techniques. Dual-band filter has passbands at 8 GHz and 11.9 GHz, with bandwidth of 155 MHz and 355 MHz, insertion loss of 1.6 dB and 0.8 dB, and in-band return loss of 21 dB and 18 dB respectively.</p>
58 - Transmissive Terahertz Metasurfaces with Extreme Aperture Ratio by using Babinet Crosslink Metamaterials Poster [Show abstract]
  • Hyunseung Jung, Soongsil University, Korea
  • Chihun In, Yonsei University, Korea
  • Hyunyong Choi, Yonsei University, Korea
  • Hojin Lee, Soongsil University, Korea
We demonstrate the transmissive terahertz metasurfaces can be achieved by the proposed Babinet crosslink meta-atoms (BCMs) with extremely higher aperture ratio in comparison to the conventional meta-cavity structures. The proposed BCMs can manipulate their transmission spectral properties as similar as the conventional meta-cavities but also achieve high transparency at the same time in other frequencies even for visible range.
59 - Connection Between Bulk Metamaterials And Metasurfaces – An Optical Approach Withdrawn [Show abstract]
  • Arnold Kalvach, Budapest University of Technology and Economics, Hungary
  • Zsolt Szabó, Budapest University of Technology and Economics, Hungary
Refractive index can be used in case of metamaterials but not in case of metasurfaces. We propose new optical properties for metasurfaces, easily retrievable from transmission/reflection data, which are unique, unlike refractive index which depends on the thickness of the effective medium, and can be used to easily determine the imaging properties of optical metasurfaces. It is also shown that anomalous refraction can be observed on non-gradient metasurfaces as well as on gradient ones.
60 - Simultaneous Imaging Of The Electric And Magnetic Fields Localized In A Photonic Nanocavity By Plasmonic Near-Field Probe Poster [Show abstract]
  • Federico La China, LENS and Department of Physics, University of Florence, Italy
  • Niccolò Caselli, LENS and Department of Physics, University of Florence, Italy
  • Francesca Intonti, LENS and Department of Physics, University of Florence, Italy
  • Francesco Riboli, Department of Physics, University of Trento, Italy
  • Wei Bao, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
  • Alexander Weber- Bargioni, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
  • Annamaria Gerardino, Institute of Photonics and Nanotechnology, CNR, Roma, Italy
  • Francesco Pagliano, COBRA, Eindhoven University of Technology, Eindhoven, The Netherlands
  • Andrea Fiore, COBRA, Eindhoven University of Technology, Eindhoven, The Netherlands
  • Massimo Gurioli, LENS and Department of Physics, University of Florence, Italy
We experimentally demonstrate a concomitant deep-subwavelength near-field imaging of the electric and magnetic intensities of the optical modes localized in a photonic crystal nanocavity, by exploiting the electric and magnetic polarizability components of a plasmonic near-field probe along with the perturbation imaging method.
61 - A Circularly Polarized Patch Antenna Loaded with Metamaterial Poster [Show abstract]
  • Son Xuat Ta, Ajou University, Korea (South)
  • Ikmo Park, Ajou University, Korea (South)
A circularly polarized patch antenna loaded with metamaterial is presented. The antenna is designed with a truncated corner square patch placed between periodic metal plates and the ground plane. The antenna with a size of 32 mm × 32 mm × 3 mm resulted in an impedance bandwidth of 4.7–7.48 GHz and an AR bandwidth of 4.9–6.2 GHz.
62 - Tunable Second-Order Bandpass Filter Based on Dual ENZ Waveguide Poster [Show abstract]
  • Nebojsa Vojnovic, Institute of Physics, University of Belgrade, Serbia, Serbia
  • Branka Jokanovic, Institute of Physics, University of Belgrade, Serbia, Serbia
  • Milos Radovanovic, Institute of Physics, University of Belgrade, Serbia, Serbia
  • Francisco Mesa, Universidad de Sevilla, Department of Applied Physics 1, Spain
A novel tunable filter based on ENZ waveguide technology is presented and discussed. This kind of filter utilizes the possibility of independent tuning of two types of resonances that occur in ENZ waveguides using short slot cuts in the ENZ channels. By forming a dual-channel configuration, a second-order bandpass filter can be obtained using zeroorder- resonance (ZOR) from one channel and Fabry-Perot (FP) resonance from the other one (whose frequency is slightly different from ZOR). Both resonances can be simultaneously and equally tuned by changing the respective slots’ lengths. The maximum observed passband shift is 900 MHz or 8.3%. During filter tuning, 3 dB-bandwidth varies between 330 MHz (3.4%) and 470 MHz (4.4%) as the length of the tuning slots decreases. Maximum insertion loss observed is 1.8 dB.
63 - An Ultra-wideband Metamaterial Absorber With Active Frequency Selective Surface Poster [Show abstract]
  • Yun He, School of Optical and Electronic Information, Huazhong University of Science and Technology, China
  • JianJun Jiang, School of Optical and Electronic Information, Huazhong University of Science and Technology, China
We present an ultra-wideband metamaterial absorber with active frequency selective surface (AFSS). The metamaterial absorber achieves three absorbing bands at different frequencies and has wideband absorption with a reflectivity below -8 dB over the range from 2.43 GHz to 14 GHz.
64 - A Band-pass Plasmonic Filter Based on Spoof Surface Plasmon Polaritons Poster [Show abstract]
  • Liangliang Liu, Nanjing University of Aeronautics and Astronautics, China
  • Zhuo Li, Nanjing University of Aeronautics and Astronautics, China
  • Pingping Ning, Nanjing University of Aeronautics and Astronautics, China
  • Bingzheng Xu, Nanjing University of Aeronautics and Astronautics, China
  • Chen Chen, Nanjing University of Aeronautics and Astronautics, China
  • Changqing Gu, Nanjing University of Aeronautics and Astronautics, China
In this work, a band-pass plasmonic filter composed of a traditional microstrip line and a gradient metallic strip drilled with subwavelength holes is proposed. Numerical simulations on the S-parameters demonstrate the good performance in the pass band. This kind of plasmonic filter poses potential applications in developing advanced plasmonic integrated circuits in the microwave and terahertz frequencies.
65 - Design Of A Small Composite Right/Left-Handed Band-pass Filter Poster [Show abstract]
  • Dong-Uk Sim, Electronics and Telecommunications Research Institute (ETRI), Korea (South)
  • Jeong Ho Ju , Electronics and Telecommunications Research Institute (ETRI), Korea (South)
  • Jong-Hwa Kwon , Electronics and Telecommunications Research Institute (ETRI), Korea (South)
  • Seong-Ook Park , Korea Advanced Institute of Science and Techonology (KAIST), Korea (South)
A new design approach to a small band-pass filter based on Composite Right/Left-Handed (CRLH-TL) transmission lines for the target Terrestrial-Digital Multimedia Broadcasting (T-DMB, 174-216 MHz) band-pass filtering, which is a digital radio transmission technology developed in South Korea. The overall size of the proposed filter is substantially diminished compared to similar filters reported recently, and unwanted passbands are effectively suppressed. For the verification of this approach, the experimental results are demonstrated along with full-wave simulation and equivalent circuit simulation results.
66 - RF Excitation of Onion State Domain Walls in Permalloy Thin-Rings Poster [Show abstract]
  • Conor McKeever, University of Exeter, United Kingdom
  • Feodor Ogrin, University of Exeter, United Kingdom
  • Mustafa Aziz, University of Exeter, United Kingdom
The dynamic domain wall behaviour of a thin permalloy ring is investigated in the presence of RF fields using numerical simulations. Our results reveal an intrinsic linear oscillation of the domain walls following low-strength pulse excitation and regions of strongly non-linear oscillatory behaviour when increasing pulse strength.
67 - A Compact Triple-Band Left-Handed Antenna For GSM/WiMAX Applications Poster [Show abstract]
  • Mahmoud Abdalla, MTC College, Egypt
  • F. H. Sadek , MSA University, Egypt
<p> This paper introduces a new compact triple band left handed antenna. Applying a composite right left handed transmission line, and open circuit termination load, the antenna operates at triple band frequencies, 1.8 GHz, 3.5 GHz and 5.8 GHz with total size 21×25 mm2 (only 27% compared to conventional microstrip antenna). A compromise between the proposed antenna's compact size and efficiency is made, as a result the antenna provides a maximum directive gain equals 1.37 dBi, 2.76 dBi and 3.61 dBi, respectively. The proposed antenna can serve WiMAX and GSM applications efficiently. The antenna performance is validated by full wave simulation and experimental measurements.</p>
68 - Study and Investigation of Harmonics Resonance Frequency for Embedded Composite Right / Left Handed Transmission Line (CRLH-TL) Array and Its Application in Microstrip Antenna Design Poster [Show abstract]
  • Yasser M. Madany, Alexandria University, Egypt
  • Hassan M. Elkamchouchi, Alexandria University, Egypt
  • Bishoy I. Halim, Alexandria University, Egypt
Metamaterials represent a new paradigm in electromagnetic science and technology. They have already leaded to many unprecedented microwave applications, which may be classified in three categories: guided-wave, radiated-wave and refracted-wave applications. Control and manipulation of electromagnetic waves is at the heart of many industries from wireless communication, Internet and optical data storage to imaging and displays. Progress in these technologies places challenging demands on material properties and therefore structured electromagnetic materials. Metamaterials are a special class of structured materials. In this paper, harmonics resonance frequency of embedded composite right / left handed transmission line (CRLH-TL) array has been introduced. The analysis and investigation are done by a commercial software. The good agreement between the theoretical expectation and the simulation results is observed. Finally, the application of the proposed CRLH-TL array was examined in microstrip antenna design. The proposed microstrip antenna structure has been fabricated and the measured S-parameters of the proposed structure can be analyzed with network analyzer to demonstrate the excellent performance and satisfy multiband frequencies using conventional single microstrip patch antenna.
69 - Unbounded Spatial Spectrum of PropagatingWaves in a Polaritonic Wire Medium Poster [Show abstract]
  • Mohammad Sajjad Mirmoosa, Department of Radio Science and Engineering, Aalto University, Finland
  • Sergei Kosulnikov, Department of Radio Science and Engineering, Aalto University, Finland
  • Constantin Simovski, Department of Radio Science and Engineering, Aalto University, Finland
<p> We reveal and study the topological transition in a metamaterial formed by parallel nanowires of polaritonic material. When the dispersion transits from the elliptic (epsilon-positive) to hyperbolic (epsilon-indefinite) regime, a very specific isofrequency surface arises which implies an extraordinary Purcell factor in spite of noticeable optical losses.</p>
70 - A Band-Notched Coplanar Waveguide based on Localized Spoof Surface Plasmons Poster [Show abstract]
  • Bingzheng Xu, Nanjing University of Aeronautics and Astronautics, China
  • Zhuo Li, Nanjing University of Aeronautics and Astronautics, China
  • Liangliang Liu, Nanjing University of Aeronautics and Astronautics, China
  • Pingping Ning, Nanjing University of Aeronautics and Astronautics, China
  • Changqing Gu, Nanjing University of Aeronautics and Astronautics, China
A simple band-notched coplanar waveguide (BNCPW) is presented in this paper, which is designed based on the idea that a defect mode in the bandgap between the fundamental and higher modes of the spoof surface plasmon polaritons (SSPPs) can be introduced to form a stopband. By properly tuning the geometrical parameters of the strips, we can introduce a very narrow stopband at will in the working band of the CPW.
71 - Metal-free High-resolution Imaging Meta-lens Poster [Show abstract]
  • Wei Xiang Jiang, Southeast University, China
  • Hui Feng Ma, Southeast University, China
  • Tie Jun Cui, Southeast University, China
We present a transformation-optics meta-lens, which is made of inhomogeneous isotropic dielectric, and experimentally demonstrate the high-resolution imaging meta-lens in the microwave frequencies. The lens is realized by non-resonant metamaterials, which are fabricated with multilayered dielectric plates by drilling inhomogeneous air holes. We validate the high-resolution imaging performance and magnification factor in experiment.
72 - Design of a New NRI Metamaterial for Multi-band Applications Poster [Show abstract]
  • Sikder Sunbeam Islam, University Kebangsaan Malaysia, Malaysia
The paper presents a new negative refractive index (NRI) metamaterial unit cell structure. The unit cell displays the negative refractive index properties in the S-band, C-band, X-band and Ku-band of microwave region. The unit cell also exhibits these negative refractive index properties with maximum 1.71 GHz wideband bandwidth in the microwave spectra. It is a promising design for its wideband and multi-band NRI operation in the electromagnetic paradigm.
73 - Dynamic Negative Permeability in a Lossless Ferromagnetic Medium Poster [Show abstract]
  • Roberto Zivieri, Department of Physics and Earth Sciences, University of Ferrara, Italy
It is shown that in a lossless and in-plane saturated ferromagnetic film the dynamic permeability is negative for frequencies corresponding to the backward volume spin waves. The electromagnetic radiation can be coupled to that of backward spin waves and the ferromagnetic film behaves as a magnetic metamaterial with negative permeability.
74 - The Role of Interplay Between Elements in the Formation of Microwave Properties of the Planar 1D-magnetic Metamaterial Poster [Show abstract]
  • Natalia Grigoryeva, St. Petersburg Electrotechnical University, Russia
  • Andrey Pastuhov, St. Petersburg Electrotechnical University, Russia
  • Pavel Alekseev, St. Petersburg Electrotechnical University, Russia
An interplay between elements in the planar magnetic metamaterial was investigated. Using recently elaborated dipole-exchange spin-wave theory for finite-width magnetic waveguide the relation between inter-element interaction and periodic structure parameters was obtained analytically. The spin-wave spectrum in such structure was calculated in the presence of an arbitrary directed external bias magnetic field.
75 - Restoring Whispering Gallery Modes with Transformation Optics Poster [Show abstract]
  • Yushin Kim, KAIST, South Korea
  • Soo-Yoong Lee, Kyungpook National University, South Korea
  • Jung-wan Ryu, Kyungpook National University, South Korea
  • Inbo Kim, Kyungpook National University, South Korea
  • Jea-Hyung Han, Kyungpook National University, South Korea
  • Heung-Sik Tae, Kyungpook National University, South Korea
  • Muhan Choi, Kyungpook National University, South Korea
  • Bumki Min, KAIST, South Korea
Whispering gallery modes (WGMs) have ultra-high quality factor but only non-directional light emission property. We suggest a novel way to restore WGM in resonant cavity of deformed boundary shape with Transformation optics. Conformal mapping make it possible with only density controlled isotropic material. FEM and microwave near-field scanning result prove that our idea is working. It is expected to be applied to wide range of optical cavity.
76 - Passive Reciprocal Electronically Tuneable Inductance In A Composite-Right-Left-Handed Metamaterial Unit Cell Poster [Show abstract]
  • Stefanie Kühn, Technische Universität Ilmenau, Germany
  • Ralf Stephan, Technische Universität Ilmenau, Germany
  • Kurt Blau, Technische Universität Ilmenau, Germany
  • Evgenii Vorobev, St. Petersburg Electrotechnical University, Russia
  • Dmitry Kholodnyak, St. Petersburg Electrotechnical University, Russia
  • Matthias A. Hein, Technische Universität Ilmenau, Germany
A novel approach to tuneable, passive, reciprocal reactances is devised and applied to a basic composite right left handed metamaterial transmission line at UHF frequencies. A tuneable inductance rather than capacitance is chosen as exemplary circuit, highlighting some of the additional degrees-of-freedom for tuneable unit cells and RF devices composed thereof.
77 - Toroidal Dipoles Generated in Nonlinear Plasmonic Metamaterials Poster [Show abstract]
  • Daniel Timbrell, UCL Electronic and Electrical Engineering, United Kingdom
  • Martin Weismann, UCL Electronic and Electrical Engineering, and Photon Design Ltd, United Kingdom
  • Nuno Braz, UCL Electronic and Electrical Engineering, and London Centre of Nanotechnology UCL, United Kingdom
  • Paul Warburton, UCL Electronic and Electrical Engineering, and London Centre of Nanotechnology UCL, United Kingdom
  • Nicolae Panoiu, UCL Electronic and Electrical Engineering, United Kingdom
We present a plasmonic metamaterial exhibiting a resonant enhancement of the lowest order toroidal multipole at the second harmonic. The optical spectra at the fundamental frequency (FF) show that the enhanced nonlinear optical response of the toroidal metamaterial is due to an excitation of an electromagnetic resonance at the FF.
78 - Design of Ku Band Metamaterial Lens Antenna for Radio Astronomy. Poster [Show abstract]
  • SUDHAKAR SAHU, KIIT University, Bhubaneswar, India, India
  • Asit Kumar Panda , National Institute of Technology, Berhampur, ODISHA, INDIA
This work proposes a metamaterial reflector lens antenna operating in Ku band. The lens antenna is made up of omega shaped metamaterial and the parabolic reflector made up of PEC. The simulation is carried out using CST MWS. The simulation results show very good far-field properties and a high gain up to 24.1dBi is achieved.
79 - Some Consequences of the Properties of Metamaterials for Wireless Power Transfer Poster [Show abstract]
  • christopher stevens, oxford university, United Kingdom
Wireless power transfer systems using realy coils are equivalent to one and two dimensional magnetoinductive waveguides. Useful insights may be gained by considering the properties of these waves in the context of such systems. Standing wave effects dominate multi-point power transfer strategies and limit the efficiency. Simple methods to alleviate thee problems are described.
80 - Energy Harvesting With A Cut-Wire Metamaterial Poster [Show abstract]
  • Gabin Thibaut Oumbe Tekam, Vrije universiteit Brussel, Belgium
  • Vincent Ginis, Vrije universiteit Brussel, belgium
  • Jan Danckaert, Vrije universiteit Brussel, Belgium
  • Philippe Tassin, Chalmers University of Technology, Sweden
We consider a cut-wire metamaterial as a harvester of ambient electromagnetic energy within the S band. The efficiency of the metamaterial energy harvester can be increased up to 30 % by adding a nonlinear element. An equivalent electrical circuit model is constructed for the purpose of optimizing the design.
81 - Anisotropic Dielectric Metamaterial Slab as a Single-Material Large-Acceptance-Angle Anti-Reflection Layer for High-Temperature Applications Poster [Show abstract]
  • Ilsung Seo, Agency for Defense Development, Korea (South)
  • Hyowook Kim, Korea Advanced Institute of Science and Technology, Korea (South)
  • Jonghwa Shin, Korea Advanced Institute of Science and Technology, Korea (South)
Missiles and fighter jets that travel at a speed much higher than the speed of sound experience highly elevated temperatures due to air friction. Conventional anti-reflection coating designs based on heterogeneous materials may not be well suited to these applications as a variety of temperature-induced problems degrade the anti-reflection performance and the structural integrity. Here, authors show that a dielectric-based anisotropic metamaterial slab can serve as an effective, broadband anti-reflection layer for microwaves.
17:00 - 19:00 - Oral sessions (Monday afternoon 2)
17:00 - Plasmonics III

Session chairperson(s): Richard Craster

17:00 - 17:15 - Colloidal Approach of Local and Propagating Magnetic Modes for Optical Metamaterials on the Macroscopic Area Oral [Show abstract]
  • Tobias A.F. König, University of Bayreuth, Germany
  • Christian Kuttner , University of Bayreuth, Germany
  • Martin Mayer , University of Bayreuth, Germany
  • Christoph Hanske , University of Bayreuth, Germany
  • Mareen B. Müller , University of Bayreuth, Germany
  • Moritz Tebbe , University of Bayreuth, Germany
  • Munish Chanana , University of Bayreuth, Germany
  • Andreas Fery , University of Bayreuth, Germany
After the metamaterial hype [Palikaras et al., 2014 8th International Congress, 2014, 397] there is a huge interest for metamaterials at a reasonable price. Colloidal synthesis methods and colloidal self-assembly methods can accept this challenge. We report about the concept of substrate-supported nanoparticles overgrowth and template-assisted colloidal self-assembly of nanoparticles to achieve local and propagating magnetic resonances on the centimeter scale.
17:15 - 17:30 - Wave Instabilities in a Cavity with Rotating Plasmonic Walls Oral [Show abstract]
  • Sylvain Lannebère, University of Coimbra, Portugal
  • Mário Silveirinha, University of Coimbra, Portugal
<p> We investigate the conditions for the emergence of wave instabilities in a vacuum cavity delimited by two plasmonic cylinders in relative rotation. We show that for a small air gap thickness and for rotation velocities above a certain threshold, the interaction between the surface plasmons of the individual cylinders gives rise to wave instabilities. The instabilities are observed only for certain modes of oscillation and are due to the transformation of kinetic energy into electromagnetic energy.</p>
17:30 - 17:45 - Experimental Proof of Nanoparticle-Assisted Super-Resolution Microscopy Oral [Show abstract]
  • Yonatan Sivan, Ben-Gurion University of the Negev, Israel
  • Yannick Sonnefraud, Institut Neel, France
  • Hugo Sinclair, Imperial College London, UK
  • Matthew Foreman, Max Planck Institute for the Science of light, Germany
  • Christopher Dunsby, Imperial College London, UK
  • Mark Neil, Imperial College London, UK
  • Paul French, Imperial College London, UK
  • Stefan Maier, Imperial College London, UK
<p> We show experimentally a 4-fold reduction of the intensity required to achieve sub-diffraction resolution in a stimulated-emission-depletion (STED) microscope, in good agreement with theory. This shows that the theoretical prediction of a 100-fold intensity-reduction is achievable.</p>
17:45 - 18:00 - Opto-Thermo-Electrical Generation of Magnetic Field Oral [Show abstract]
  • Guillaume Vienne, Data Storage Institute & Nanyang Technological University, Singapore
  • Xiaoye Chen, Data Storage Institute, Singapore
  • Zheng Ting Tan, Data Storage Institute, Singapore
  • Paul Clérico, Data Storage Institute, Singapore
  • Ramon Paniagua-Domínguez, Data Storage Institute, Singapore
  • Boris Luk’yanchuk, Data Storage Institute, Singapore
Loops of two metallic or semiconductor materials were used by Thomas Seebeck nearly two centuries ago in his discovery of the thermoelectric effect. Replacing the lamp in this seminal experiment by an ultrashort laser and scaling down the loop to the nanoscale is predicted to lead to a magnetic pulse with high confinement in time and space. Here we investigate how characteristics of the light pulse and the nanoring influence the generation of the magnetic pulse.
18:00 - 18:30 - Optical Metamaterials Resonances with Large Quality Factors Invited oral [Show abstract]
  • Costas Soukoulis, Ames Lab/Iowa State Univ, USA & IESL-FORTH, Crete, Greece, Greece
Most metamaterials (MMs) to date are made with metallic constituents, resulting in significant dissipation loss in the optical domain. Therefore, we need to find other ways to create high-quality resonators with less dissipative loss for the meta-atoms. One innovative approach we plan is to reduce dissipative losses by making use of dielectrics rather than metals for building the EM resonators. This avoids resonant loss in the metals and we indeed demonstrate electric and magnetic dielectric metamaterial resonators with very large quality factors. The resulting structures can be straightforwardly scaled at optical frequencies to create low-loss MMs with a wide range of properties.
18:30 - 19:00 - Integrated Nanowire Plasmonics Invited oral [Show abstract]
  • Kenneth Goodfellow, Institute of Optics, University of Rochester, USA
  • Chitraleema Chakraborty, Materials Science, University of Rochester, USA
  • Ryan Beams, Institute of Optics, University of Rochester, USA
  • Lukas Novotny, ETH-Zurich, Switzerland
  • Nick Vamivakas, Institute of Optics, University of Rochester, USA
<p> Atomically thin materials, such as graphene and transition metal dichalcogenides, offer an interesting platform to tailor nanoscale light-matter interaction. The ease with which these materials can be incorporated into optoelectronic devices has given rise to the emerging area of nano-optoelectronics. In this talk I will discuss some recent results on merging plasmonics and atomically thin materials as well as the possibility of exploiting atomically thin semiconductors for integrated quantum photonics applications.</p>
17:00 - Transformation approaches II

Session chairperson(s): Francisco Mesa

17:00 - 17:30 - Photonic Topological Insulators Invited oral [Show abstract]
  • Mordechai Segev, Technion – Israel Institute of Technology, Israel
  • Miguel A. Bandres, Technion – Israel Institute of Technology, Israel
  • Yonatan Plotnik, Technion – Israel Institute of Technology, Israel
  • Mikael C. Rechtsman, Technion – Israel Institute of Technology, Israel
  • Yaakov Lumer, Technion – Israel Institute of Technology, Israel
  • Julia M. Zeuner, Friedrich-Schiller-Universitt Jena, Germany
  • Alexander Szameit, Friedrich-Schiller-Universitt Jena, Germany
We review the recent progress on the first experimental demonstration of photonic topological insulators, along with a variety of new ideas associated with it.
17:30 - 18:00 - Analogue Transformations in Acoustics and Optics Invited oral [Show abstract]
  • Carlos Garcia-Meca, Universitat Politecnica de Valencia, Spain
<p> Recently, the concept of analogue transformations has extended the potential of transformational methods. We present an overview of this approach and its application to spacetime transformation acoustics. Moreover, we show that, while inherently equipped with a complete transformational technique, the field of optics can also benefit from this method.</p>
18:00 - 18:15 - Direction Enhancing Lens Design Through Quasi-Conformal Transformation Optics Oral [Show abstract]
  • Jianjia Yi, IEF, Univ. Paris-Sud, CNRS, UMR 8622, France
  • Shah Nawaz Burokur, Institut d'Electronique Fondamentale, France
  • André de Lustrac, Institut d'Electronique Fondamentale, France
In this paper, based on quasi-conformal transformation optics (QCTO), a synthesis design of a conformal array radiation enhanced by an all-dielectric metamaterial lens is presented. For the two-dimensional TE polarization, a physically cylindrically conformed patch array can acquire the same radiating features of a virtual planar focusing patch array, using a lens having only nonmagnetic medium parameters. Full-wave simulations are performed to justify the design approach.
18:15 - 18:30 - Towards A Practical Super Phase Array Oral [Show abstract]
  • Wei Hsiung Wee, DSO National Laboratories, Singapore
  • Joash Yong En Ye, National University of Singapore, Singapore
  • Yu Luo, Nanyang Technological University, Singapore
In theory, a Super Phase Array (SPA) which radar cross section is greatly enhanced can be constructed. However in practice it is very difficult to make them. Here, we shall demonstrate a generic method to make the simplest possible SPA with any arbitrary geometry.
18:30 - 18:45 - All Cloaks are Spacetime Cloaks Oral [Show abstract]
  • Robert Thompson, University of Otago, New Zealand
Most invisibility cloaks designed with the transformation optics approach have used purely spatial transformations. When viewed from a 4-dimensional perspective it becomes obvious that purely spatial cloak transformations introduce unwanted effects such as space-like trajectories of light. By considering time transformations in conjunctions with spatial transformations, it may be possible to mitigate these unwanted effects. This demonstrates the importance of 4-dimensional thinking for transformation optics.
18:45 - 19:00 - Localized Emitters Close to Nano-Bowties: Insight via Conformal Transformation Oral [Show abstract]
  • Victor Pacheco-Peña, Universidad Pública de Navarra, Spain
  • Miguel Beruete, Universidad Pública de Navarra, Spain
  • Antonio I. Fernández-Domínguez, Universidad Autónoma de Madrid, Spain
  • Yu Luo, Nanyang Technological University, Singapore
  • Miguel Navarro-Cía, Imperial College London, United Kingdom
We tackle the problem of investigating the near-field interaction between a dipole source and a bowtie via conformal transformation. We show how, in the electrostatic approximation, the bowtie and point dipole source is transformed into the analytically solvable configuration. The analytical solutions are validated with full-wave simulations.
17:00 - Exotic effects

Session chairperson(s): Cristian Della Giovampaola

17:00 - 17:30 - Experimental Demonstration of a Negative Phase Velocity in Soft 3D Metafluids Extended oral [Show abstract]
  • Thomas Brunet, I2M-APy, University of Bordeaux - CNRS - Bordeaux INP, France
  • Aurore Merlin, CRPP, University of Bordeaux - CNRS, France
  • Benoit Mascaro, I2M-APy, University of Bordeaux - CNRS - Bordeaux INP, France
  • Kevin Zimny, CRPP, University of Bordeaux - CNRS, France
  • Jacques Leng, LOF, University of Bordeaux - CNRS - Solvay, France
  • Olivier Poncelet, I2M-APy, University of Bordeaux - CNRS - Bordeaux INP, France
  • Christophe Aristégui, I2M-APy, University of Bordeaux - CNRS - Bordeaux INP, France
  • Olivier Mondain-Monval, CRPP, University of Bordeaux - CNRS, France
<p> We report a new class of soft 3D locally resonant ultrasonic fluid metamaterials, engineered using soft-matter techniques coupled with microfluidics. Through angular-phase measurements on Gaussian pulses propagating within these acoustic metafluids, composed of “ultra-slow” porous micro-beads, the acoustic index is shown to be negative in good agreement with multiple-scattering calculations.</p>
17:30 - 17:45 - Controlling The Lasing Threshold In Two-Dimensional Photonic Crystals With Gain Oral [Show abstract]
  • Sotiris Droulias, Institute of Electronic Structure and Laser, FORTH, Greece
  • Peng Zhang, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, USA
  • Thomas Koschny, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, USA
  • Costas M. Soukoulis, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, USA
We examine how the lasing threshold of a two dimensional photonic crystal containing a four-level gain medium is modified, as a result of the interplay between the group velocity and the modal reflectivity at the interface between the cavity and the exterior. The simulations are in good agreement with theoretical predictions.
17:45 - 18:00 - Omnidirectional Impedance Matching Induced by Spatial Dispersions Oral [Show abstract]
  • Jie Luo, Soochow University, China
  • Yuting Yang, Soochow University, China
  • Weixin Lu, Soochow University, China
  • Zhongqi Yao, Soochow University, China
  • Zhi Hong Hang, Soochow University, China
  • C.T. Chan, Hong Kong University of Science and Technology, China
  • Yun Lai, Soochow University, China
We theoretically and experimentally demonstrate that by utilizing a new freedom introduced by spatial dispersions in the effective parameters, Brewster effect can be extended from a single angle to a range of angles, enabling wide-angle impedance matching and total transmission of light through the surface. By designing pure dielectric photonic crystals with spatial dispersions, we demonstrate an approach to achieve the omnidirectional total transparency and aberration-less virtual image. Our work reveals rich possibilities like wide-angle loss-less super-polarizer and transformation optics devices with additional phases beyond the local medium description.
18:00 - 18:15 - Switching the Response of Metasurfaces in Polarization Standing Waves Oral [Show abstract]
  • Xu Fang, University of Southampton, United Kingdom
  • Kevin MacDonald, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We demonstrate experimentally that standing waves of polarization, as opposed to intensity, can be engaged to coherently control light-matter interactions in planar photonic nanostructures, presenting unique opportunities for all-optical data processing and polarization-dependent molecular spectroscopy.
18:15 - 18:30 - Leaky Waves, Wood’s Anomalies and Extraordinary Optical Trapping Oral [Show abstract]
  • Francesco Monticone, The University of Texas at Austin, USA
  • Andrea Alu, The University of Texas at Austin, USA
We discuss the possibility of trapping light within the radiation continuum, based on the anomalous interaction of diffracted waves and leaky modes in diffraction gratings. These trapped optical states can be predicted within the framework of leaky-wave theory, providing physical insight on similar embedded eigenstates recently demonstrated in the literature.
18:30 - 18:45 - Propagating Toroidal Electromagnetic Excitations And Their Interactions With Metamaterials And Nanostructures Oral [Show abstract]
  • Tim Raybould, University of Southampton, United Kingdom
  • Vassili Fedotov, University of Southampton, United Kingdom
  • Nikitas Papasimakis, University of Southampton, United Kingdom
  • Ian Youngs, DSTL, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We report on the electromagnetic properties of ‘focused doughnuts’ (FD), space-time localized solutions to Maxwell’s equations with toroidal topology. We show that light-matter interactions of FD pulses, include non-trivial field transformations and broadband modal excitations.
18:45 - 19:00 - Hall-Effect Sign-Inversion in a Realizable 3D Metamaterial Oral [Show abstract]
  • Muamer Kadic, Karlsruhe Institut of Technology, Germany
  • Robert Schittny, Karlsruhe Institut of Technology, Germany
  • Tiemo Bückmann, Karlsruhe Institut of Technology, Germany
  • Christian Kern, Karlsruhe Institut of Technology, Germany
  • Martin Wegener, Karlsruhe Institut of Technology, Germany
We suggest and study a three-dimensional simple-cubic metamaterial composed of interlinked tori made of a single constituent in air or vacuum. This metamaterial exhibits a sign-inversion of the Hall voltage with respect to the bulk constituent. Thus, in effect, an electron conductor appears like a hole conductor. We show that the sign of the Hall voltage can be changed by a geometrical separation parameter and that the overall behavior is robust. Simplicity and robustness bring experimental realizations of this striking sign inversion into reach.
17:00 - Mechanical and elastic metamaterials

Session chairperson(s): Alejandro Manjavacas

17:00 - 17:30 - Multistable Magneto-Elastic Lattices As Tunable Elastic Metamaterials Invited oral [Show abstract]
  • Massimo Ruzzene, Georgia Institute of Technology, USA
  • Marshall Schaeffer, Georgia Institute of Technology, USA
The paper discusses the wave propagation characteristics of two-dimensional (2D) magneto-elastic lattices. Mechanical instabilities caused by magnetic interactions are exploited in combination with particle contact to induce changes in the topology and stiffness of the lattices. The propagation of in-plane waves is predicted by applying Bloch theorem to lattice unit cells with linearized interactions. Elastic wave dispersion in these lattices before and after topological changes is compared, and large differences are highlighted.
17:30 - 18:00 - Flexible Mechanical Metamaterials Invited oral [Show abstract]
  • Martin van Hecke, Amolf Amsterdam & University Leiden, Netherlands
Flexible mechanical metamaterials are compliant structures with a functionality set by the geometry. In many cases, each new functionality requires a new structure, but here I show that using frustration allows one to program different functionalities in a single geometry.
18:00 - 18:15 - Static Mechanical Cloak Design by Direct Lattice Transformation Oral [Show abstract]
  • Tiemo Bückmann, Institute of Applied Physics, Karlsruhe Institute of Technology, Germany
  • Muamer Kadic, Institute of Applied Physics, Karlsruhe Institute of Technology, Germany
  • Robert Schittny, Institute of Applied Physics, Karlsruhe Institute of Technology, Germany
  • Martin Wegener, Institute of Applied Physics and Institute of Nanotechnology, Karlsruhe Institute of Technology, Germany
We show that very good static elasto-mechanical cloaking can be obtained numerically and experimentally by direct coordinate transformation of the lattice points of a two-dimensional hexagonal lattice while readjusting the shape of the double-trapezoidal elements connecting adjacent lattice points such that their Hooke’s spring constant is fixed.
18:15 - 18:30 - Multishape Origami Metasheets Oral [Show abstract]
  • Scott Waitukaitis, Leiden University, Netherlands
  • Rémi Menaut, École Normale Supérieure de Lyon, France
  • Bryan Gin-ge Chen, Leiden University, Netherlands
  • Martin van Hecke, Leiden University, Netherlands
We make an origami-based mechanical metamaterial in which shape shifting is a bulk property. Our building block is the rigid 4-fold vertex, which we show is generically multistable. A simple tiling procedure instals the multistability of a base vertex into a sheet, hence creating a 2D material with many stable shapes.
18:30 - 18:45 - All-Dielectric Nano-Opto-Mechanical Metasurfaces Oral [Show abstract]
  • Artemios Karvounis, University of Southampton, United Kingdom
  • Weiping Wu, University of Southampton, United Kingdom
  • Kevin MacDonald, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We introduce and for the first time experimentally demonstrate free-standing all-dielectric metasurfaces in a variety of ultra-thin, low-loss media. Such structures provide resonant optical properties at near-infrared wavelengths and offer the possibility of extremely strong and fast optical nonlinearities underpinned by nano-opto-mechanical forces.
18:45 - 19:00 - Phononic Crystal Plates with Anisotropic Mass Density Oral [Show abstract]
  • Daniel Torrent, Institute d'Electronique, de Microelectronique et de Nanotechnologie, France
  • Yan Pennec, Institute d'Electronique, de Microelectronique et de Nanotechnologie, France
  • Bahram Djafari-Rouhani, Institute d'Electronique, de Microelectronique et de Nanotechnologie, France
Phononic crystals plates are theoretically and numerically studied. They are based on two- dimensional phononic crystals of finite thickness, which are analyzed in the low-frequency limit. It is shown that for a specific type of inclusion, some resonances provide anisotropic mass density to the phononic crystal and, therefore, to the plate. Numerical calculations of the full band structure are computed for both the phononic crystal plate and the effective homogeneous plate, and a good agreement is shown.
19:00 - 20:00 - Welcome reception
8 September 2015 / Start time: 9 h 0 min
09:00 - 10:00 - Plenary session II
09:00 - Plenary Session II

Session chairperson(s): Martin Wegener

09:00 - 10:00 - Acoustic Metamaterials Plenary [Show abstract]
  • Steven Cummer, Duke University, USA
This talk will review the development of the field of acoustic metamaterials, from the early development of key ideas, through the dramatic acceleration that paralleled the development of electromagnetic metamaterials, to what is now a distinct field with its own constraints, possibilities, and goals. To provide a common reference point, focus will partly be on similarities and contrasts with electromagnetic metamaterials: what is easier, what is more difficult, and what is simply different.
10:00 - 10:30 - Coffee break
10:30 - 12:00 - Oral sessions (Tuesday morning)
10:30 - Plasmonics IV

Session chairperson(s): Jorge Bravo-Abad

10:30 - 10:45 - Tunable and Efficient Long Range Energy Transfer Via Graphene Plasmon Modes Oral [Show abstract]
  • Vasilios D. Karanikolas, Trinity College Dublin, Ireland
  • Cristian A. Marocico, Trinity College Dublin, Ireland
  • A. Louise Bradley, Trinity College Dublin, Ireland
We present a theoretical investigation of the energy transfer efficiency between a pair of quantum emitters (QEs) in the presence of a graphene monolayer. At small distances between the QEs a direct interaction dominates, increasing the distance the interaction via the graphene plasmon dominates.
10:45 - 11:00 - Nanoplasmonic Bullseye Architecture for Precise Attolitre Temperature Control of Nanopore Systems Oral [Show abstract]
  • Pablo Albella, Imperial College London, United Kingdom
  • Colin Crick, Imperial College London, United Kingdom
  • Binghao Ng, Imperial College London, United Kingdom
  • Alex P. Ivanov, Imperial College London, United Kingdom
  • Tyler Roschuk, Imperial College London, United Kingdom
  • M. P. Cecchini, Imperial College London, United Kingdom
  • Fernando Bresme, Imperial College London, United Kingdom
  • Stefan A. Maier, Imperial College London, United Kingdom
  • Joshua B. Edel, Imperial College London, United Kingdom
Targeted temperature control in nanopores is greatly important in further understanding biological molecules. Such control would extend the range of examinable molecules and facilitate advanced analysis, including the characterization of temperature-dependent molecule confor- mations. The work presented here details precise temperature control at a plasmonic nanopore. The solid-state devices are made up of a silicon nitride membrane, and gold layer patterned with a well-defined bullseye structure surrounding a nanopore. The design is optimised, through simulation and experiment, to act as nanoantenna with maximum enhancement at the centre of the pore.
11:00 - 11:15 - Period Asymmetries In Particle Arrays For One-Way And Sector-Way Guiding Oral [Show abstract]
  • Yarden Mazor, Tel-Aviv university - Electric Engineering, Israel
  • Yakir Hadad, University of Texas at Austin, USA
  • Ben Z. Steinberg, Tel-Aviv university - Electric Engineering, Israel
A general theory for one-way optical guiding in periodic particle arrays is developed. Conditions on the asymmetry properties of the structure’s period that are necessary to obtain asymmetric dispersion are derived. The two-type rotation principle, presented and studiedin previous works on one-way guiding in particle chains, is viewed as a special design that achieves the necessary violation of the period’s symmetries. The recently suggested sector-way metasurfaces are also addressed in the present context. Examples of periodic strips and surfaces that consist of circular particles and support one way and sector-way guiding, are provided.
11:15 - 11:30 - Fourier Polarimetry Of Scattering And Fluorescence From Bullseye Plasmon Antennas Oral [Show abstract]
  • Clara I. Osorio, Center for Nanophotonics, FOM Institute AMOLF, Netherlands
  • Abbas Mohtashami, Center for Nanophotonics, FOM Institute AMOLF, Netherlands
  • A. Femius Koenderink, Center for Nanophotonics, FOM Institute AMOLF, Netherlands
Surface plasmon resonators can drastically redistribute incident light over different output wave vectors and polarizations. We present Fourier polarimetry as a new experimental tool to completely characterize the angle-dependent polarization-resolved scattering of single nanostructures. To showcase the method we measured scattering and fluorescence from plasmonic bullseye antennas, which are known to beam light efficiently. We find rich structure in the angular-dependent polarization state of the scattered light, including complete conversion of input polarization from linear to circular and from one helicity to another. Furthermore, we show how Fourier polarimetry allows determining the emitter-antenna coupling in the case of antenna-mediated fluorescence.
11:30 - 12:00 - Quantum Hydrodynamic Model: a Bottom-Up Approach Invited oral [Show abstract]
  • Cristian Ciraci, Istituto Italiano di Tecnologia, Italy
  • Fabio Della Sala, Istituto Italiano di Tecnologia, Istituto Nanoscienze-CNR, Italy
The Hydrodynamic model can be generalized in order to describe non-local and spill-out effects near metal surfaces. Orbital-free energy functionals can be plugged-in the hydrodynamic equation in order to better describe the internal energy of an electron gas. We explore the impact of the equilibrium charge density in such model for the case of spherical nanoparticles and compare our results to density functional theory based calculations.
10:30 - Metasurfaces I

Session chairperson(s): Tie Jun Cui

10:30 - 10:45 - Optically Reconfigurable Metadevices Based on Phase-Change Materials Oral [Show abstract]
  • Qian Wang, Optoelectronics Research Centre, University of Southampton and Institute of Materials Research and Engineering, United Kingdom and Singapore
  • Artemis Karvounis, Optoelectronics Research Centre, University of Southampton, United Kingdom
  • Edward T. F Rogers, Optoelectronics Research Centre and Instiute for Life Sciences, University of Southampton, United Kingdom
  • Behrad Gholipour, Optoelectronics Research Centre, University of Southampton and Centre For Disruptive Photonic Technologies, Nanyang Technological University, United Kingdom and Singapore
  • Yuan Guanghui, Centre For Disruptive Photonic Technologies, Nanyang Technological University, Singapore
  • Kevin F Macdonald, Optoelectronics Research Centre, University of Southampton, United Kingdom
  • Nikolay I Zheludev, Optoelectronics Research Centre, University of Southampton and Centre For Disruptive Photonic Technologies, Nanyang Technological University, United Kingdom and Singapore
Chalcogenide phase-change media provide a uniquely flexible platform for both nanostructured and optically-rewritable all-dielectric metamaterials. Non-volatile, laser-induced phase transitions enable resonance switching in nanostructured chalcogenide meta-surfaces and allow for reversible direct-writing of arbitrary meta-devices in chalcogenide thin films, including dynamically re-focusable, chromatically correctable and super-oscillatory lenses, and near-infrared-resonant photonic metamaterials.
10:45 - 11:00 - Reduction of Rectangular Waveguide Cross-Section with Metamaterials: A New Approach Oral [Show abstract]
  • Benedikt Byrne, University of Toulouse/CNES/Satimo, France
  • Nathalie Raveu, University of Toulouse/CNRS, France
  • Nicolas Capet, CNES, France
  • Gwenn Le Fur, Satimo, France
  • Luc Duchesne, Satimo, France
A new approach to design a metamaterial surface (meta-surface) with the objective of reducing the waveguide’s cutoff frequency of the fundamental mode is proposed. From an analytical study of the dispersion diagrams of waveguides with anisotropic walls, a hypothesis for the surface impedances is set up. By means of this new hypothesis, the design of a unit-cell is optimized. Finally, the periodically arranged meta-surface is implemented in a miniaturized waveguide and the simulation results are compared to the ones of a metallic waveguide in order to validate the approach.
11:00 - 11:30 - Optical Wavefront Control Based on All-Dielectric Huygens' Metasurfaces Extended oral [Show abstract]
  • Dragomir Neshev, Australian National University, Australia
  • Katie Chong, Australian National University, Australia
  • Isabelle Staude, Australian National University, Australia
  • Anthony James, Sandia National Laboratories, USA
  • Jason Dominiquez, Sandia National Laboratories, USA
  • Sheng Liu, Sandia National Laboratories, USA
  • Salvatore Campione, Sandia National Laboratories, USA
  • Ganapathi S. Subramania, Sandia National Laboratories, USA
  • Ting S. Luk, Sandia National Laboratories, USA
  • Manuel Decker, Australian National University, Australia
  • Igal Brener, Sandia National Laboratories, USA
  • Yuri Kivshar, Australian National University, Australia
<p> We demonstrate experimentally high efficiency beam shaping based on silicon Huygens-type metasurfaces. Our metasurface consist of arrays of silicon nanodisks of different sizes and are capable of converting a Gaussian into a vortex beam with 70% transmittance efficiency, independent of the polarization of the incident beam and without polarization conversion losses.</p>
11:30 - 12:00 - Design And Applications Of Huygens Metasurfaces Invited oral [Show abstract]
  • Ariel Epstein, University of Toronto, Canada
  • Joseph Wong, University of Toronto, Canada
  • George Eleftheriades, University of Toronto, Canada
We present a complete methodology for designing Huygens metasurfaces (HMS), structures combining electric and magnetic polarizable particles to tailor the fields on their aperture. This includes a spectral formalism to design HMS radiators for a given source, and a method for implementing them using printable subwavelength elements, extending their applications beyond beam manipulation.
10:30 - Experimental techniques

Session chairperson(s): Muamer Kadic

10:30 - 10:45 - Magnetic Resonances of Metallic Film supported Gold Nanorods in the Optical Frequency Range by Large-Scale Self-Assembly Oral [Show abstract]
  • Martin Mayer, University of Bayreuth, Physical Chemistry II, Germany
  • Moritz Tebbe, University of Bayreuth, Physical Chemistry II, Germany
  • Christian Kuttner, University of Bayreuth, Physical Chemistry II, Germany
  • Tobias A.F. König, University of Bayreuth, Physical Chemistry II, Germany
  • Andreas Fery, University of Bayreuth, Physical Chemistry II, Germany
We demonstrate the fabrication of macroscopically detectable magnetic resonances via large-scale self-assembly of gold nanorod strongly coupling with a supporting gold film. The presented cost-efficient lithography-free approach provides access to large-area bottom-up fabrication of negative index metamaterials in the optical frequency range.
10:45 - 11:15 - Bringing Metamaterials, Plasmonics And Nanoantennas Concepts Into Silicon Photonics Invited oral [Show abstract]
  • Alejandro Martinez, Nanophotonics Technology Center, Spain
In this paper, I briefly discuss the benefits of introducing recent concepts arisen from metamaterials, plasmonics and nanoantennas fields on a silicon photonics integrated platform. This could lead to the improvement of photonic integrated circuits as well as to disruptive applications in photonics.
11:15 - 11:30 - Biaxial Anisotropic Sample Design and Rectangular to Square Waveguide Material Characterization System Oral [Show abstract]
  • Alexander Knisely, Air Force Institute of Technology, USA
  • Michael Havrilla, Air Force Institute of Technology, USA
  • Peter Collins, Air Force Institute of Technology, USA
An electrically biaxial anisotropic sample design methodology utilizing crystallographic symmetry is discussed. Sample synthesis equations based on equivalent capacitance analysis translate desired permittivity values and host materials to sample cell dimensions and are subsequently fabricated on a 3-D printer. Equivalent capacitance predictions yield permittivity tensor element values comparable to simulation results. A rectangular to square waveguide measurement system is also used to verify the sample design methodology.
11:30 - 11:45 - Scattering of Light by Plasmonic Nanoclusters: Strength and Anisotropy of Magnetic Scattering. Oral [Show abstract]
  • Philippe Barois, Bordeaux University - CNRS - Centre Paul Pascal, France
  • Virginie Ponsinet, Bordeaux University - CNRS - Centre Paul Pascal, France
  • Philippe Richetti, Bordeaux University - CNRS - Centre Paul Pascal, France
  • Anirudh Peyyety, Bordeaux University - CNRS - Centre Paul Pascal, France
  • Jean Baptiste Salmon, Bordeaux University - CNRS - Solvay - Laboratory of the Future, France
  • Sergio Gomez-Graña, Bordeaux University - CNRS - Institut de Chimie de la Matiere Condensee., France
  • Mona Treguer-Delapierre, Bordeaux University - CNRS - Institut de Chimie de la Matiere Condensee., France
“Raspberry-like” plasmonic nanoclusters constitute a first step in a bottom-up approach towards metamaterials exhibiting optical magnetism. We show that a full characterization of the electromagnetic response of plasmonic nanoclusters can be obtained by complementary techniques including polarization-resolved static light scattering, dynamic light scattering and numerical simulations. High values of the magnetic response are obtained after optimization of the morphology of the nanoclusters.
11:45 - 12:00 - Optical Characterization of Large Area Metamaterials Fabricated Using UV-based Nanoimprint Lithography Oral [Show abstract]
  • Michael J. Haslinger, Profactor GmbH, Austria
  • Jürgen Danzberger, Profactor GmbH, Austria
  • Thomas A. Klar, Johannes Kepler University Linz, Austria
  • Calin Hrelescu, Johannes Kepler University Linz, Austria
  • Iris Bergmair, Profactor GmbH, Austria
<p> In this work we report on large area two dimensional periodic metamaterial structures produced by Nanoimprint Lithography (NIL). We fabricate various metal-insulator-metal three layer systems and systematically study the effects of different symmetric patterns and different layer compositions on the optical properties in the visible range. The results of angle dependent transmission and reflection measurements reveal that our structures are very promising candidates for optical metamaterial.</p>
10:30 - Quantum effects

Session chairperson(s): Silvio Hrabar

10:30 - 10:45 - Coherent Response Structure In SQUID-Based RF Metasurface Oral [Show abstract]
  • Alexander Averkin, NUST MIS&S, Russia
  • Alexander Zhuravel, B. Verkin Institute for Low Temp. Physics and Engineering, Ukraine
  • Philipp Jung, Physikalisches Institute, Karlsruhe Institute of Technology (KIT), Germany
  • Natalya Maleeva, NUST MIS&S, Russia
  • Valeriy Koshelets, Kotel’nikov Institute of Radio Engineering and Electronics, Russia
  • Lyudmila Filippenko, Kotel’nikov Institute of Radio Engineering and Electronics, Russia
  • Alexey Ustinov, Physikalisches Institute, Karlsruhe Institute of Technology (KIT), Germany
We study RF response of the individual meta-atoms in the superconducting metasurface built with two dimensional array of RF Superconducting Quantum Interferometer Devices (SQUIDs). We tested a metasurface sample with 21X21 RF SQUID array in a waveguide test chamber designed in a way to achieve a uniform microwave RF signal excitation over the entire array. The demonstrated tunability of 2D SQUID metasurface resonance frequency with extern magnetic field is 56% (8 - 12.5 GHz). Moreover, RF currents distribution in the SQUIDs array is observed with Laser Scanning Microscope.
10:45 - 11:00 - Quantum Photonic Conductivity Oral [Show abstract]
  • Mario Silveirinha, University of Coimbra, Portugal
A photonic analogue of the electrical conductivity is put forward. In the same manner as in electronics the conductivity characterizes the electron flow for an electromagnetic excitation, the photonic conductivity describes the induced light flow in a material subject to mechanical oscillations.
11:00 - 11:15 - On the Question of Compatibility of Maxwell's Equations and Density Matrix Formalism Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
<p> A usually accepted approach of combination of Maxwell equation with density matrix formalism leads to a paradox for the radiative loss description. This roots into the basic principles from which Maxwell equations are elaborated.</p>
11:15 - 11:30 - Random Access Photonic Metamaterials Oral [Show abstract]
  • Pablo Cencillo-Abad, University of Southampton, United Kingdom
  • Jun-Yu Ou, University of Southampton, United Kingdom
  • Joao Valente, University of Southampton, United Kingdom
  • Eric Plum, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We demonstrate the first addressable reconfigurable photonic metamaterials thus enabling control over optical material properties with simultaneous spatial and temporal resolution. Potential applications of random access metadevices include active focusing, beam steering, dynamic transformation optics and video holography.
11:30 - 12:00 - Merging Metamaterials with Quantum Photonics Invited oral [Show abstract]
  • Mikhail Y. Shalaginov, Purdue University, USA
  • Simeon Bogdanov, Purdue University, USA
  • Polina V. Kapitanova, ITMO University, Russia
  • Alexei S. Lagutchev, Purdue University, USA
  • Alexander V. Kildishev, Purdue University, USA
  • Pavel A. Belov, ITMO University, Russia
  • Alexandra Boltasseva, Purdue University, USA
  • Vladimir M. Shalaev, Purdue University, USA
We have studied the effect of a high photonic density of states provided by a metamaterial environment on the dynamics of nanodiamond based nitrogen-vacancy (NV) centers. We have experimentally demonstrated the broadband enhancement of single-photon emission from nanodiamond NV centers coupled to a planar multilayer metamaterial with hyperbolic dispersion. In addition, we have studied the influence of Purcell effect on the fluorescent contrast between the NV center spin states.
12:00 - 13:30 - Lunch break (Tuesday)
13:30 - 15:00 - Oral sessions (Tuesday afternoon 1)
13:30 - Plasmonics V

Session chairperson(s): Maiken Mikkelsen

13:30 - 13:45 - Absorption Effects and Non-Bragg Gap Solitons in Kerr Metamaterial Heterostructures Oral [Show abstract]
  • Ernesto Reyes-Gómez, Universidad de Antioquia, Colombia
  • Solange Bessa Cavalcanti, Universidade Federal de Alagoas, Brazil
  • Luiz Eduardo Oliveira, Universidade Estadual de Campinas, Brazil
<p> An investigation on gap solitons localized within one-dimensional Kerr/metamaterial heterostructures in periodic, quasi-periodic and disordered arrangements is carried out. Transmission is obtained by considering losses within the metamaterial layers. Under suitable conditions, multistability, transmission switching and soliton formation are observed for all arrangements.</p>
13:45 - 14:00 - Plasmonic CROWs For Tunable Dispersion And High Quality Cavity Modes Withdrawn [Show abstract]
  • John Wood, Imperial College London, United Kingdom
  • Lucas Lafone, Imperial College London, United Kingdom
  • Joachim Hamm, Imperial College London, United Kingdom
  • Ortwin Hess, Imperial College London, United Kingdom
  • Rupert Oulton, Imperial College London, United Kingdom
We present a plasmonic coupled resonator optical waveguide (CROW) that utilises the broad resonances and subwavelength nature of localised surface plasmons to produce a compact CROW design where the plasmonic nanoparticles are side coupled via a diectric waveguide. Such a scheme features a highly tunable low-loss central band where coupling to the plasmonic nanoparticles is systematically avoided close to the band edge. Furthermore, such low loss modes are preserved in the form of Fabry-Perot type resonances in finite sized CROWs; leading to cavity modes with quality factors of many thousands and whose upper limit depends only on the CROW length. By varying the geometric parameters the losses into dissipative and radiative channels can be reduced and it is also possible to efficiently outcouple the energy into the waveguide. This ability to minimise the plasmonic losses whilst maintaing the dispersion charateristics of the structure could make plasmonic CROWs an effective cavity desing for on-chip laser devices and other applications.
14:00 - 14:15 - Simple Analytical Expression For The Frequency Shifts Of Plasmonic Resonances For Sensing Oral [Show abstract]
  • Jianji Yang, Laboratoire Photonique Numérique et Nanosciences, France
  • Rémi Faggiani, LP2NLaboratoire Photonique Numérique et Nanosciences, France
  • Philippe Lalanne, Laboratoire Photonique Numérique et Nanosciences, France
  • Harald Giessen, University of Stuttgart, Germany
We derive a closed-form expression that accurately predicts the peak frequency-shift and broadening induced by tiny perturbations of plasmonic nanoresonators without critically relying on repeated electrodynamic simulations of the spectral response of nanoresonator for various locations, sizes or shapes of the perturbing objects. Accurate predictions are obtained for a broad panel of nanoparticle shapes and sizes, used in various plasmonic nanosensors. The expression gives quantitative insight, and combined with an open-source code, provides accurate and fast predictions that are ideally suited for preliminary designs or for interpretation of experimental data. It is also valid for photonic resonators with large mode volumes.
14:15 - 14:30 - Reciprocal and Non-Reciprocal Wave Phenomena In Quasi-Periodic Particle Chains Oral [Show abstract]
  • Yarden Mazor, Tel-Aviv university - Electric Engineering, Israel
  • B. Z. Steinberg, Tel-Aviv university - Electric Engineering, Israel
<p> Quasi-Periodic (QP) particle chains exhibit unique properties not observed in periodic ones. Furthermore, they inherently support significant long-range interactions and radiation to the surrounding medium. Hence they are fundamentally different from traditional QP structures governed by the Harper’s model or the almost-Mathieu operator. We present a mathematical framework for QP particle chains and study their electrodynamics. They support guided modes that exhibit a complex interaction with the light cone, and possess a twodimensional fractal-like structure in the frequencywavenumber space thus making the unique definition of modal phase velocity impossible. However, a well-defined group velocity is revealed due to the fractals inner structure. We also show initial study of non-reciprocal QP structures.</p>
14:30 - 15:00 - Lasing Action in Active Plasmonic Structures Invited oral [Show abstract]
  • Javier Cuerda, Universidad Autonoma de Madrid, Spain
  • Felix Ruting, Universidad Autonoma de Madrid, Spain
  • Francisco J. Garcia-Vidal, Universidad Autonoma de Madrid, Spain
  • Jorge Bravo-Abad, Universidad Autonoma de Madrid, Spain
We present our recent advances in nanoscale lasing action enabled by plasmonic resonances. First, we study lasing action in plasmonic crystals incorporating optically pumped four-level gain media. We show that the excitation of dark plasmonic resonances (via the gain medium) enables accessing the optimal lasing characteristics of this class of systems. Second, we analyze the conditions for the emergence of self-sustained laser oscillations in an optically-pumped long-range surface-plasmon structure that includes plasmonic Bragg mirrors as optical feedback mechanism.
13:30 - Metasurfaces II

Session chairperson(s): Xiaobo Yin

13:30 - 13:45 - Device Design From Stacked Metasurfaces By Use Of A 4x4 S-Matrix Formalism Oral [Show abstract]
  • Jan Sperrhake, Friedrich-Schiller-Universität Jena, Institute of Applied Physics, Abbe School of Photonics, Germany
  • Christoph Menzel, Friedrich-Schiller-Universität Jena, Institute of Applied Physics, Germany
  • Thomas Pertsch, Friedrich-Schiller-Universität Jena, Institute of Applied Physics, Abbe School of Photonics, Germany
We propose a method for efficiently stacking complex homogeneous metasurfaces (MS) to create integrated optical devices. A theoretical framework for fast numerical calculations is given by means of a scattering matrix algorithm. As an example we use a combination of periodic metallic layers and dielectric spacers to design a frequency selective mirror.
13:45 - 14:00 - Magneto-Electric Coupling in All-Dielectric Nanoantennas Oral [Show abstract]
  • Rasoul Alaee, Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology, Germany
  • Mohammad Albooyeh, Department of Radio Science and Engineering, Aalto University, Finland
  • Mohammad Sajjad Mirmoosa, Department of Radio Science and Engineering, Aalto University, Finland
  • Yuri S. Kivshar, Nonlinear Physics Centre, Centre for Ultrahigh-Bandwidth Devices for Optical Systems (CUDOS), Australia
  • Carsten Rockstuhl, Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology, Germany
<p> We present a novel high-index dielectric nanoantenna with a tunable magneto-electric coupling. The key to achieve such bianisotropic (magneto-electric) coupling is breaking the symmetry of a nanoantenna. This coupling provides interesting optical features for an individual nanoantenna as well as for planar arrays made from such nanoanetnnas.</p>
14:00 - 14:30 - All-dielectric Metasurfaces for Phase Manipulation and Polarized Reflection Control Extended oral [Show abstract]
  • Ramon Paniagua Dominguez, Data Storage Institute, Singapore
  • Ye Feng Yu, Data Storage Institute, Singapore
  • Alexander Y. Zhu, Data Storage Institute, Singapore
  • Yuan Hsing Fu, Data Storage Institute, Singapore
  • Leonid A. Krivitskiy, Data Storage Institute, Singapore
  • Vytautas Valukas, Data Storage Institute, Singapore
  • Toh Yeow Teck, Data Storage Institute, Singapore
  • Leonard Gonzaga, Data Storage Institute, Singapore
  • Anthony Kay Yew Seng, Data Storage Institute, Singapore
  • Boris Luk'yanchuk, Data Storage Institute, Singapore
  • Arseniy Kuznetsov, Data Storage Institute, Singapore
Here, we will experimentally demonstrate a dielectric metasurface based on silicon nanodisks, with close to unity transmission over a broad spectral range in the visible. Full 2π phase control is shown by beam deflection with 75% efficiency. In additiona, it is theoretically predicted and experimentally verified that a properly designed all-dielectric metasurface can exhibit Brewster’s effect potentially for any angle, wavelength and polarization of choice.
14:30 - 15:00 - High Efficiency Metasurface Holograms Invited oral [Show abstract]
  • Shuang Zhang, University of Birmingham, United Kingdom
  • Guoxing Zheng, Wuhan University, China
  • Holger Muhlenbernd, University of Paderborn, Germany
  • Mitchell Kenney, University of Birmingham, UK
  • Guixin Li, Baptist University of Hong Kong, China
  • Thomas Zentgraf, University of Paderborn, Germany
<p> We report the realization of highly efficient geometric phase metasurfaces. A 16-level phase CGH design is realized using the metasurface, exhibiting high quality holographic images with very high fidelity and a broad bandwidth from visible to near infrared. The overall efficiency reaches 80%, greatly surpassing previously demonstrated metasurface based CGH. The GEMS based CGHs with their accurate phase modulation, high efficiency, and simple fabrication procedure compared to conventional multi-step phase holograms, are highly promising for various practical applications ranging from laser holographic projection to data storage and beam shaping.</p>
13:30 - Microwave and RF Metamaterials I

Session chairperson(s): Mohammad Hafezi

13:30 - 13:45 - Dual-Band Epsilon-Negative (ENG) Transmission Line Metamaterials based on Microstrip Lines Loaded with Pairs of Coupled Complementary Split Ring Resonators (CSRRs): Modeling, Analysis and Applications Oral [Show abstract]
  • Lijuan Su, CIMITEC, Departament d’Enginyeria Electrònica 08193, Universitat Autònoma de Barcelona, Spain
  • Jordi Naqui, CIMITEC, Departament d’Enginyeria Electrònica 08193, Universitat Autònoma de Barcelona, Spain
  • Javier Mata, CIMITEC, Departament d’Enginyeria Electrònica 08193, Universitat Autònoma de Barcelona, Spain
  • Ferran Martín, CIMITEC, Departament d’Enginyeria Electrònica 08193, Universitat Autònoma de Barcelona, Spain
Microstrip lines loaded with pairs of electrically coupled complementary split ring resonators has been studied including the effect of coupling between two CSRRs. It could be applied to the design of stop band filters and differential sensors.
13:45 - 14:00 - Resonating Elements Longer Than the Unit Cell: A Way to Make Very Dense Broadband Left-Handed Metamaterials Oral [Show abstract]
  • Juan Domingo Baena Doello, Universidad Nacional de Colombia, Colombia
<p> In this paper metamaterials based on resonators longer than the unit cell is introduced. The resonator is just a simple conducting strip bent several times. A broadband left-handed metamaterial has been designed with a 37% relative bandwidth. Besides, there is not a fundamental limitation for the smallness of the unit cell.</p>
14:00 - 14:15 - Suppression of Scattering Based on an Ultrathin Metasurface Oral [Show abstract]
  • Jie Zhao, Southeast University, China
  • Qiang Cheng, Southeast University, China
  • Mei Qing Qi, Southeast University, China
  • Tie Jun Cui, Southeast University, China
We propose a method to suppress the scattering based on an ultrathin metasurface in a broad frequency band. The designed metasurface is composed of two kinds of units with different geometries and reflection phases, which provide destructive interference in most of reflected directions, suppressing the main lobe and side lobes significantly of the scattering pattern. Full-wave numerical simulation results show that a large bandwidth of 1.74 GHz is achieved using the proposed metasurface with the thickness 1 mm, which suppresses the scattering by at least 10 dB.
14:15 - 14:30 - Dual-Band, Low-Frequency Artificial Magnetic Conductor using Lumped Components Oral [Show abstract]
  • Gregor Lasser, Vienna University of Technology, Austria
  • Zoya Popovic, University of Colorado, Boulder, USA
  • Christoph F. Mecklenbräuker, Vienna University of Technology, Austria
In this contribution we discuss the design of a Frequency Selective Surface (FSS) serving as planar, dual-band, low-frequency Artificial Magnetic Conductor(AMC). The unit cell geometry of the AMC is based on meander structures to reduce its size and allow for the design of two separately tuneable resonances. The FSS is constructed from two single-sided Printed Circuit Boards (PCBs) manufactured from cost-effective FR-4 separated by nylon spacers. The unit cells contain lumped elements for tuning of the individual resonances and immunity to permittivity variations of the substrate. The numerical simulation results are discussed and compared to measurements obtained from manufactured specimens.
14:30 - 15:00 - Coding Metamaterials and Programmable Metamaterials Invited oral [Show abstract]
  • Tie Jun Cui, State Key Laboratory of Millimeter Waves, Southeast University, China
  • Mei Qing Qi, State Key Laboratory of Millimeter Waves, Southeast University, China
  • Xiang Wan, State Key Laboratory of Millimeter Waves, Southeast University, China
  • Qiang Cheng, State Key Laboratory of Millimeter Waves, Southeast University, China
We propose the concept of coding metamaterial, which is composed of “0” and “1”elements for 1-bit coding, and “00”, “01”, “10”, and “11” elements for 2-bit coding, etc. Different from the conventional metamaterial that utilizes effective medium parameters to control the electromagnetic (EM) waves, the coding metamaterial makes use of different sequences of spatial codes to manipulate the EM waves. We present a unique metamaterial particle to create “0” or “1” response controlled by a biased diode. Based on this particle, we propose the concept of digital metamaterial whose unit cells possess either “0” or “1” state. Using a field-programmable gate array (FPGA), the coding sequences on the digital metamaterial can be written in program and controlled in real time. Hence a single digital metamaterial has the ability to manipulate EM waves in different manners by pre-designed program, realizing the programmable metamaterials. The above concepts and physical phenomena are confirmed by numerical simulations and experiments in microwave and terahertz frequencies.
13:30 - Active, non-Foster, and PT-symmetric Metamaterials I

Session chairperson(s): Massimo Ruzzene

13:30 - 13:45 - Spontaneous Light Generation in Twin Semiconductor Waveguides Oral [Show abstract]
  • Tiago Morgado, Department of Electrical Engineering, Instituto de Telecomunicações, University of Coimbra, Portugal
  • Mário Silveirinha, Department of Electrical Engineering, Instituto de Telecomunicações, University of Coimbra, Portugal
Here we study the electromagnetic instabilities in a system formed by two twin semiconductor waveguides separated by a vacuum layer in two different scenarios: (i) semiconductor slabs in relative motion, and (ii) in the presence of an electron drift. It is shown that the flow of electrons can mimic the response of a moving material slab, inducing exponentially growing light oscillations. The oscillations result from the hybridization of the surface plasmon polaritons (SPPs) supported by each air-semiconductor interface.
13:45 - 14:00 - Parity-Time Symmetric Tunnelling Oral [Show abstract]
  • Younes Ra'di, Department of Radio Science and Engineering, Aalto University, Finland
  • Dimitrios Sounas, Department of Electrical & Computer Engineering, The University of Texas at Austin, USA
  • Andrea Alù, Department of Electrical & Computer Engineering, The University of Texas at Austin, USA
  • Sergei Tretyakov, Department of Radio Science and Engineering, Aalto University, Finland
We show that plane waves can fully “tunnel” through a thin metallic layer perforated with a two-dimensional subwavelength array of tiny holes. It is shown that a parity-time-symmetric pair of a lossy layer in front and an active layer behind the metallic layer makes both forward and backward scattered powers zero.
14:00 - 14:15 - PT-Symmetric Metamaterial Systems for Aberration-Free Imaging and Wave Manipulation Oral [Show abstract]
  • Francesco Monticone, The University of Texas at Austin, USA
  • Constantinos Valagiannopoulos, Aalto University, Finland
  • Silvio Savoia, University of Sannio, Italy
  • Romain Fleury, The University of Texas at Austin, USA
  • Andrea Alu, The University of Texas at Austin, USA
We show that PT-symmetry concepts, combined with an effective nonlocal response, allow realizing all-angle negative refraction and aberration-free optical imaging. The designed PT-symmetric lens is an example of “absolute optical instrument”, with similar imaging properties as DNG lenses, but without some of their drawbacks.
14:15 - 14:30 - Threshold Manipulation in Parity-Time Symmetric Microresonator Chain Oral [Show abstract]
  • Sendy Phang, The George Green Institute for Electromagnetics Research, United Kingdom
  • Ana Vukovic, The George Green Institute for Electromagnetics Research, United Kingdom
  • Stephen C. Creagh, School of Mathematical Sciences, University of Nottingham, United Kingdom
  • Trevor M. Benson, The George Green Institute for Electromagnetics Research, United Kingdom
  • Phillip D. Sewell, The George Green Institute for Electromagnetics Research, United Kingdom
  • Gabriele Gradoni, School of Mathematical Sciences, University of Nottingham, United Kingdom
This paper analyses the eigenfrequencies of an infinitely long chain of microresonators with PT symmetry. The results show that the depth of modulation of the real part of the refractive index can be used to control the threshold point of the PT structure.
14:30 - 15:00 - Parity-Time Optical Metamaterial Devices Extended oral [Show abstract]
  • Zi Jing Wong, University of California, Berkeley, USA
  • Xiang Zhang, University of California, Berkeley, USA
Exploration of the interplay between material gain and loss can lead to novel metamaterials of unique performances. Here we demonstrated a single-mode microring laser based on parity-time symmetry breaking.
15:00 - 15:30 - Coffee break
15:30 - 17:00 - Poster session II
15:30 - Poster Session II
1 - Finite Element Investigation on Lamb Waves in Composite Phononic Crystals Poster [Show abstract]
  • Jingshi Wang, Nantong University, China
Phononic crystals (PCs) commonly consisted of two materials with huge contrasted elastic properties and mass densities. In this paper, the propagation of Lamb waves in the composted PCs is investigated. Coupling effects of band gaps for low order Lamb wave modes are found. Crucial parameters such as the periodical arrangement of the scatterers are discussed in detail for the influence of band structures.
2 - Double Fano Resonances in a Composite Metamaterial Possessing Tripod Plasmonic Resonances Poster [Show abstract]
  • Yeon Ui Lee, Ewha Womans University, Korea (South)
  • Jeong Weon Wu, Ewha Womans University, Korea (South)
Double Fano resonances are observed in a planar composite metamaterial possessing tripod plasmonic resonances, where a common subradiant driven oscillator is coupled with two superradiant oscillators. As a classical analogue of four-level tripod atomic system, the extinction spectrum of the composite metamaterial exhibits a coherent effect based on double Fano resonances. It is shown that a transfer of the absorbed power between two orthogonal superradiant oscillators is mediated by a common subradiant oscillator.
3 - Simulation of Negative Refraction Condition for Fishnet Structures Based on Self-Assembled Nanoparticles Templates Poster [Show abstract]
  • Serge Kozik, Institute of Physics of NAS Belarus, Republic of Belarus
  • Serge Ravaine, Centre de Rechereche Paul Pascal, CNRS, France
  • Vladimir Belyi, Institute of Physics of NAS Belarus, Republic of Belarus
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
Simulation has been conducted of the optical properties of gold nanopillar array with each pillar consisted of two gold layers. It is shown that in near-infrared range (optical communication frequencies) such fish-net structures possess negative refraction index and optical magnetism. Due to possible fabrication of such fish-net metamaterial using bottom-up approach on cm-scale there are wide perspectives for their application for creation of various devices of nanophotonics.
4 - The Construction of Hyperbolic Metamaterial for an Optical Spectral Range Poster [Show abstract]
  • Nikolai Mukhurov, Institute of Physics of NAS Belarus, Republic of Belarus
  • Mohammed A.Binhussain, The National Center for Building System, KACST, Republic of Belarus
  • Vladimir Belyi, Institute of Physics of NAS Belarus, Republic of Belarus
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
The construction is proposed of the hyperbolic metamaterial for an optical spectral range with the expanded working range of wavelength due to periodic system of nanorods in a definite range of diameters and heights. The construction is fulfilled on aluminum-oxide ceramics with the periodic system of nanoholes with the diameters from 30 up to 50 nm filled with particles of noble metal, which forms metal nanorods with the height from 3 up to 10 diameters of nanorods from the side of the surface of dielectric substrate turned toward the source of electromagnetic radiation. To provide mechanical strength the thickness of the dielectric substrate is to be not less than 30 μm.
5 - Infinite Maxwell fish-eye in a finite area Poster [Show abstract]
  • Yangjie Liu, Queen Mary, Univ. London, United Kingdom
  • Huanyang Chen, School of Physical Science and Technology, Soochow University, P. R. China
  • Majid Naeem, Queen Mary, Univ. London, UK
<p> We propose a new design for imaging via isotropic refractive index of heterogeneous medium. By aid of conformal map, one transfers the full Maxwell fisheye into a mapped profile within a unit circle. By this trick, the imaging resolution of this new profile is maintained as good as the truncated Maxwell fisheye profile or its conformally-mapped counterpart in previous literature.</p>
6 - Oscillation between Excited States of Atom in Photonic Crystals Using External Coherent Control Laser for Quantum Computation Poster [Show abstract]
  • Hiroyuki Nihei, Health Sciences University of Hokkaido, Japan
We demonstrate oscillation between the excited states of an atom embedded in a photonic crystal using the external coherent control laser, which may act as a qubit operation for quantum information processing.
7 - Intracavity Absorption Spectroscopy Based on Graphene Spaser Poster [Show abstract]
  • Alexander Dorofeenko, Institute for Theoretical and Applied Electromagnetics RAS, Russia
We propose an intracavity plasmon absorption spectroscopy method based on graphene active plasmonics. Maximum sensitivity is reached in the vicinity of the plasmon generation threshold. The giant amplification of sensitivity in the graphene plasmon generator is associated with a huge path length, limited only by the decoherence processes.
8 - 3D Combinatorial Mechanical Metamaterials Poster [Show abstract]
  • Corentin Coulais, Leiden University/ FOM Institute AMOLF, Netherlands
  • Eial Teomy, Tel Aviv University, Israel
  • Koen de Reus, Leiden University, The Netherlands
  • Yair Shokef, Tel Aviv University, Israel
  • Martin van Hecke, Leiden University/ FOM Institute AMOLF, the Netherlands
We present a class of aperiodic elastic structures which exhibit 3D-folding motion with arbitrary complex deformations. We use this large design space to encode smart functionalities such as surface patterning, mechanical reponse and multistability.
9 - Tailoring Spontaneous Emission with Magnetic Fields in Graphene Poster [Show abstract]
  • Wilton Kort-Kamp, Universidade Federal do Rio de Janeiro, Brazil
  • Guilherme Bastos, Universidade Federal do Rio de Janeiro, Brazil
  • Felipe Pinheiro, Universidade Federal do Rio de Janeiro, Brazil
  • Felipe Rosa, Universidade Federal do Rio de Janeiro, Brazil
  • Carlos Farina, Universidade Federal do Rio de Janeiro, Brazil
We investigate the spontaneous emission (SE) near graphene grown on SiC in the presence of an external magnetic field. The magnetic field can induce a variation of 99 % in the SE, suggesting that it may be applied to tune and tailor light-matter interactions in graphene plasmonics.
10 - Ideal Cloaking Effect of Radially Inhomogeneous Spherical and Cylindrical Shells in the Quasi-Static Limit Poster [Show abstract]
  • Igor Pinkevych, Taras Shevchenko National University of Kyiv, Ukraine
  • Victor Reshetnyak, Taras Shevchenko National University of Kyiv, Ukraine
  • Dean Evans, Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, USA
<p> Electric response of the objects covered by spherical and cylindrical shells with radially anisotropic permittivity is studied in quasi-static approach. We show that shells with radially inhomogeneous permittivity components can provide the ideal cloaking. We established conditions necessary for reaching the ideal invisibility of the cloaked structures.</p>
11 - Measuring Chromatic Aberration in Imaging Systems Using Plasmonic Nano-Particles Poster [Show abstract]
  • Sylvain Gennaro, Blackett Laboratory, Imperial College London , United Kingdom
  • Tyler Roschuk, Blackett Laboratory, Imperial College London, United Kingdom
  • Stefan Maier, Blackett Laboratory, Imperial College London, United Kingdom
  • Rupert Oulton, Blackett Laboratory, Imperial College London, United Kingdom
<p> We demonstrate a novel method to measure chromatic aberrations of microscope objectives with metallic nano-particles using incoherent white light. We show a direct correlation between the focal wavelength and the longitudinal chromatic focal shift through analysis of the scanned extinction spectra of a single nano-particle through a lens’s focal plane.</p>
12 - Point To Point Coupling With One Dimensional Graphene Based Edge Plasmon Polaritons Poster [Show abstract]
  • Costantino De Angelis, University of Brescia, Dept. of Information Engineering, Italy
  • Andrea Locatelli, University of Brescia, Dept. of Information Engineering, Italy
  • Andrea Mutti, University of Brescia, Dept. of Information Engineering, Italy
  • Alejandro Aceves, Southern Methodist University, Department of Mathematics, USA
We study the hybridization of two graphene based one dimensional edge surface plasmon polaritons (1DSPP). We discuss normal and anomalous coupling between 1DSPP and we exploit the sensitivity of these devices to the carrier concentration on graphene sheets to propose metamaterials dynamically tunable by means of an electrical gate.
13 - Enhanced Spontaneous Parametric Down-Conversion in a Metal-Dielectric Interface Poster [Show abstract]
  • Ardi Loot, University of Tartu, Estonia
  • Ilmo Sildos, University of Tartu, Estonia
  • Vladimir Hižnjakov, University of Tartu, Estonia
Spontaneous parametric down-conversion in a metal-dielectric interface in the case of oblique laser excitation is considered. In this case it is possible to generate pairs of surface plasmon polaritons with high efficiency, if the angle of excitation corresponds to the Kretschmann configuration for generated plasmons. The efficiency can be additionally increased/enhanced if to use metal-dielectric interfaces with long-range surface plasmon polaritons and/or a properly nanostructured metallic film, allowing one to directly excite surface plasmon polaritons and to fulfill their phase matching condition with generated surface plasmon polaritons.
14 - Monolayer Graphene Plasmon Controlled With Liquid Crystal Layer Poster [Show abstract]
  • Victor Reshetnyak, Physics Faculty, Taras Shevchenko National University of Kyiv, Ukraine
In this study we suggest to control the reflectance and transmittance of monolayer graphene placed between silicon relief grating and liquid crystal slab by reorienting the liquid crystal director. Our modelling of the electric control of graphene plasmon in the hybrid system under investigation involves the following elements: liquid crystal director spatial profile, electric field distribution in liquid crystal and electromagnetic wave propagation through the sandwich: liquid crystal-monolayer graphene-silicon grating.Put your abstract here
15 - Negative Permeability In 3D Superconducting Metamaterial Poster [Show abstract]
  • Nataliya Maleeva, National University of Science and Technology "MISIS", Russia
  • Mikhail Fistul, National University of Science and Technology "MISIS", Ruhr-Universitat Bochum, Russia, Germany
  • Alexandre Karpov, National University of Science and Technology "MISIS", Russia
  • Alexey Ustinov, National University of Science and Technology "MISIS", Karlsruhe Institute of Technology (KIT), Russia, Germany
We report here on the possibility of realization negative permeability in 3D metamaterial made of planar spiral superconducting resonators. A theoretical study of the electrodynamic response of a 3D array of monofilar Archimedean spiral resonators to an externally applied alternating magnetic field is presented. Such metamaterial with the dissipation parameter taken from typical experimental data shows a few of narrow frequency bands in which the real part of the permeability is negative.
16 - Coexisting of Thermal and Electric Cloaking Effects in Bi-layer Nanoporous Composite Poster [Show abstract]
  • Roland Tarkhanyan, Institute of Radiophysics& Electronics of National Academy of Sciences of Armenia, Armenia
  • Dimitris Niarchos, INN "Demokritos", Greece
In this paper, we investigate the conceptual realization of a concentric bi-layer composite made of the same isotropic and homogeneous semiconductor material with various porosities and show the possibility of simultaneous cloaking performance for both heat flux and electric current without disturbing external fields.Put your abstract here
17 - Optical and Morphological Properties of Annealed Au Thin Films Poster [Show abstract]
  • Vesna Janicki, Ruđer Bošković Institute, Croatia
  • Boris Okorn, Ruđer Bošković Institute, Croatia
  • Eva Kovačević, 2GREMI Universite d’Orleans, Polytech Orleans, France
  • Hrvoje Zorc, Ruđer Bošković Institute, Croatia
  • Jordi Sancho-Parramon, Ruđer Bošković Institute, Croatia
<p> The effect of annealing on the optical and morphological properties of Au metal island and continuous films was studied by spectroscopic ellipsometry and SEM. It was found that annealing promotes reshaping and formation of bigger islands and breaks the continuity of 18 nm Au coating at temperatures higher than 200oC.</p>
18 - Relative Contribution of Electric and Magnetic Fields to the Transmittance of a Subwavelength Aperture Poster [Show abstract]
  • Fernando de León-Pérez, Centro Universitario de la Defensa, Spain
  • Fernando Villate-Guío, Departamento de Física, Universidad Pedagógica y Tecnológica de Colombia, Colombia
  • Luis Martín-Moreno, Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, Spain
By illuminating a single rectangular hole drilled in an opaque metal film with parallel electric and magnetic fields, it is found that the magnetic field dominates the response of the aperture. This study could be useful for the design of new magnetometry strategies.
19 - An Efficient Method for Calculating the Absorption Enhancement in Solar Cells with Integrated Plasmonic and Photonic Nanoparticles Poster [Show abstract]
  • Phillip Manley, Helmholtz Zentrum Berlin, Germany
  • Frank Schmidt, Zuse Institute Berlin, Germany
  • Martina Schmid, Helmholtz Zentrum Berlin, Germany
We present a method for calculating the plasmonic and photonic enhancement of the absorption in solar cells. The method involves coupling between a transfer matrix method to describe light propagation in the layered stack and Mie theory for calculating the absorption and angular scattered field distribution from the nanoparticles. We also compare the method to rigorous simulations.
20 - Directional Emission and Frequency Splitting Operation Based on the Manipulation of Surface Modes in Dielectric Photonic Crystals Structures Poster [Show abstract]
  • Anna Tasolamprou, Institute of Electronic Structure and Laser, FORTH, Greece
  • Lei Zhang, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, USA
  • Thomas Koschny, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, USA
  • Maria Kafesaki, Department of Materials Science and Technology, University of Crete, Institute of Electronic Structure and Laser, FORTH, Greece
  • Costas Soukoulis, Ames Laboratory and Department of Physics and Astronomy, Iowa State University,Institute of Electronic Structure and Laser, FORTH, USA, Greece
<p> Put your abstract hereWe present the numerical design and experimental validation of a dielectric photonic crystal structure that provides tunable directional emission and frequency splitting operation. The configuration consist of a line-defect photonic crystal waveguide that transmits energy to a properly designed surface and grating bilayer. The operation of the device is based on the excitation of highly localized surface waves and their selective coupling to outgoing propagating waves. The device is characterized by low beam cross-talk and reduced return losses.</p>
21 - DNA-assembled Nanoparticle Rings with Electric and Magnetic Resonances at Visible Frequencies Poster [Show abstract]
  • Eva-Maria Roller, Ludwig-Maximilians-Universität Munich, Germany
  • Larousse Khosravi Khorashad , Ohio University Athens, USA
  • Michael Fedoruk , Ludwig-Maximilians-Universität Munich, Germany
  • Robert Schreiber , University of Oxford, UK
  • Alexander O. Govorov , Ohio University Athens, USA
  • Tim Liedl, Ludwig-Maximilians-Universität Munich, Germany
In addition to electric responses, it is of particular interest to produce artificial optical magnetism in the visible regime. To this end, metallic nanoparticles can be arranged to have unique tailored optical properties at visible frequencies. DNA-origami is a bottom-up approach which can successfully template plasmonic materials at the nanometer scale, in large quantities and high yields. Herein we applied this method to fabricate self-assembled ring-shaped plasmonic metamolecules that are composed of four to eight precisely organized metal nanoparticles. Scattering spectra shows that our DNA templated plasmonic structures support unique electric and magnetic plasmon resonance modes, in good agreement with numerical simulations. We stress the possibility to create bulk plasmonic materials and metamolecules that may be applied as building blocks in plasmonic devices.
22 - Morphology and Optical Properties of Carboxylated Nitrocellulose Honeycomb Films Modified with Silver Nanoparticles Poster [Show abstract]
  • Vladimir Agabekov, The institute of chemistry of new materials of National Academy of Sciences of Belarus, Belarus
  • Viktoryia Kulikouskaya, The institute of chemistry of new materials of National Academy of Sciences of Belarus, Belarus
  • Svetlana Kurilkina, Institute of Physics of National Academy of Sciences of Belarus, Belarus
  • Mohammed Binhussain, The King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia
Ordered composite materials containing silver nanoparticles on the surface of polymer matrix were formed on the basis of honeycomb carboxylated nitrocellulose film. The optimal conditions which allow forming silver layer only onto the surface of polymer honeycomb films were determined. The relationship between morphology of proposed films and their optical properties was established. The effective medium theory is elaborated for these films. It is established that proposed structures can display the properties of metamaterial in near IR spectral region.
23 - Langmuir-Blodgett Films of Polystyrene-poly-2-vinylpyridine with Silver Nanoparticles Poster [Show abstract]
  • Vladimir Agabekov, Institute of Chemistry of New Materials, Belarus National Academy of Sciences, Belarus
  • Aliaksandr Salamianski, Institute of Chemistry of New Materials, Belarus National Academy of Sciences, Belarus
  • Evgenii Skoptsov, Institute of Chemistry of New Materials, Belarus National Academy of Sciences, Belarus
  • Alexander Agashkov, Institute of Physics, Belarus National Academy of Sciences, Belarus
  • Mohammed Binhussain, The National Center for Building Systems, King Abdul-Aziz City for Science and Technology, Saudi Arabia
<p> Composite Langmuir-Blodgett (LB) mono- and multilayers of polystyrene-poly-2-vinylpyridine with silver nanoparticles of size 5 to 91 nm were formed on silicon and glass surfaces. Its morphology and optical properties (phase shift) were studied.</p>
24 - Far-field Flat Lensing of the Field Created by Super Wavelength Sized Slits Poster [Show abstract]
  • Nikolai Khilo, Institute of Physics of NAS Belarus, Republic of Belarus
  • Vladimir Belyi, Institute of Physics of NAS Belarus, Republic of Belarus
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
It is shown that at focusing with flat lens of the field created by the slit with the size larger than the wavelength, the intensity distribution has two maxima and the focal distance increases. The proposed scheme combines flat lensing and generation of incomplete Airy beams.
25 - Negative Index And Mode Coupling In All-Dielectric Metamaterials At Terahertz Frequencies Poster [Show abstract]
  • Eric Akmansoy, Université Paris-Sud - Institut d'Electronique Fondamentale, France
  • Simon Marcellin, Université Paris-Sud - Institut d'Electronique Fondamentale, France
<p> We report on the role of the coupling of the modes of Mie resonances in an all- dielectric metamaterial so as to achieve negative index at terahertz frequencies. We studied this role according to the lattice spacing and according to the frequency overlapping of the modes of resonance. We show that negative effective index requires sufficiently high mode coupling.</p>
26 - Detection of Transverse Plasmons in Multilayer Graphene Poster [Show abstract]
  • Sergey Menabde, Seoul National University, Korea (South)
  • Namkyoo Park, Seoul National University, Korea (South)
For the first time, we present feasible and effective approach to direct optical probing of transverse electric (TE) plasmons in graphene, experimentally demonstrating significant plasmonic coupling to an incident wave in electrically doped multilayer graphene sheet.
27 - Unidirectional Acoustic Transmission in Asymmetric Bull’s Eye Metasurface Poster [Show abstract]
  • Jiwei Wang, School of Physics, Nanjing University, China
  • Baoguo Yuan, School of Physics, Nanjing University, China
  • Ying Cheng, School of Physics, Nanjing University, China
  • Xiaojun Liu, School of Physics, Nanjing University, China
  • Desheng Ding, School of Electronic Science and Engineering, Southeast University, China
An asymmetric bull's eye metasurface has been investigated, which exhibits remarkable unidirectional acoustic transmission behavior. With changing the periodicity, the transmitted acoustic energy flux keeps unchanged while the frequency of the transmitted waves can be modified. The metasurface may have potential application in ultrasound diagnosis and therapy.
28 - Negative Phase Shift in a Layered Metal-Dielectric Structure: Theory and Experiment Poster [Show abstract]
  • Alexander Agashkov, Institute of Physics of NAS Belarus, Republic of Belarus
  • Vladimir Belyi, Institute of Physics of NAS Belarus, Republic of Belarus
  • Mohammed A. Binhussain, National Center for Building and Construction Technology, KACST , Saudi Arabia
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
  • Vladimir Agabekov, Institute of Chemistry of New Materials of NAS Belarus, Republic of Belarus
  • Nikolai Khilo, Institute of Physics of NAS Belarus, Republic of Belarus
Measurements of the negative optical phase shifts of Ag/TiO2 and Ag/SiO2 bilayer films have been carried out with the modified walk-off interferometer. Appearance and monotonic rise of the phase shift anisotropy for p- and s-polarization by increasing incidence angle has been revealed experimentally. The results of measurements have shown rather good coincidence with theoretical calculations.
29 - Nanoparticles of Arbitrary Form in the Maxwell-Garnett Theory Poster [Show abstract]
  • Sergei Kozik, Institute of Physics of NAS Belarus, Republic of Belarus
  • Mohammed A.Binhussain, National Center for Building and Construction Technology, KACST , Saudi Arabia
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
  • Vladimir Agabekov, Institute of Chemistry of New Materials of NAS Belarus, Republic of Belarus
  • Andrey Smirnov, Institute of Physics of NAS Belarus, Republic of Belarus
The technique of improvement of the Maxwell-Garnett theory of electric permittivity averaging for precise evaluation of composite material dispersion is demonstrated. According to this approach, a set of adjustable coefficients in depolarization factor are introduced, which are determined in the process of fitting simulated optical spectra to experimentally measured ones. The presentation gives the results of depolarization coefficient calculation from reflection and transmission spectra of simulated in finite difference time domain method test structures and from experimentally measured spectra of samples with non-uniform nanoparticles distribution. The proposed approach shows good convergence with the experimental data and could be used as a versatile dispersion model in optical metrology of composite materials with unknown arbitrary concentration and shapes of inclusions.
30 - Fano Resonance of Dielectric Wire Pair Metamaterial Poster [Show abstract]
  • Fuli Zhang, School of Science, Northwestern Polytechnical University, China
  • Xinchao Huang, Northwestern Polytechnical University, China
  • Qian Zhao, Tsinghua University, China
  • Lei Chen, Northwestern Polytechnical University, China
  • Ying Wang, Northwestern Polytechnical University, China
  • Qiang Li, Northwestern Polytechnical University, China
  • Xuan He, Northwestern Polytechnical University, China
  • Chang Li, Northwestern Polytechnical University, China
  • Ke Chen, Northwestern Polytechnical University, China
We experimentally demonstrate Fano resonance in a metamaterial composed of an asymmetric ferroelectric wire pair. By assembling two parallel ceramic wires of different lengths, sharp Fano-type transmission spectra emerge as a result of interference between the quadrupole and dipole modes. A rapid increase in group delay is observed as a result of a steep variation in transmission phase. The location of the Fano resonance peak depends on the wire separation and degree of asymmetry. Furthermore, Fano resonance can be thermally modulated from 9.8 GHz to 10.5 GHz as the ambient temperature varies from 10°C to 50°C, as a consequence of the temperature dependence of the permittivity of the ceramic material.
31 - Flexible and Mechanically Tunable Metamaterial Absorbers Poster [Show abstract]
  • Fuli Zhang, School of Science, Northwestern Polytechnical University, China
  • Shuqi Feng, Northwestern Polytechnical University, China
  • Kepeng Qiu, Northwestern Polytechnical University, China
  • Zijun Liu, Northwestern Polytechnical University, China
  • Yuancheng Fan, Northwestern Polytechnical University, Northwestern Polytechnical University
  • Weihong Zhang, Northwestern Polytechnical University, China
  • Qian Zhao, Northwestern Polytechnical University, China
  • Ji Zhou, Northwestern Polytechnical University, China
we present experimental demonstration of a flexible and mechanically tunable metamaterial absorber composed of dielectric resonator stacked on a thin conductive rubber layer. A near unity absorption is observed due to strong local field confinement around magnetic Mie resonance of dielectric resonator. Furthermore, the interspacing between unit cells is modulated dynamically under uniaxial stress. Owing to the decreases of longitudinal coupling between neighboring unit cells, the resonant absorption peak is reversibly tuned by 410 MHz as the stain varies up to 180 % along H field direction. On the contrary, the resonant absorption state is nearly independent on strain variation when external stress is applied along E field direction, due to the weak transverse interplaying. The mechanically tunable metamaterial absorber featured by flexibility paves a way forwards for actual application.
32 - Optimization of the Active Gold Nanoshell for Surface Enhanced Raman Scattering Poster [Show abstract]
  • ShuMin Jiang, Jiangsu University, China
  • DaJian Wu, Nanjing Normal University, China
The electric field enhancement properties of the active gold nanoshell have been investigated. An extremely high SERS G factor on 1019-1020 can be obtained in the optimized active gold nanoshell. The optimized active gold nanoshell has a high efficiency of SERS effect.
33 - On The Design Of Unit-cells For Acoustic Metasurfaces Poster [Show abstract]
  • Hussein Esfahlani, EPFL-STI-EE-LEMA/LTS2, Switzerland
  • Sami Karkar, EPFL-STI-EE-LEMA/LTS2, Switzerland
  • Herve Lissek, EPFL-STI-EE-LTS2, Switzerland
Here, we introduce a new labyrinthine type unit-cell for phase engineering of the transmitted wave front. Despite the complexity of the shape, the structure is very easy to design. Moreover, it is based on well defined mathematical formula which facilitates the design and optimization procedure.
34 - Influence of Absorption on the Longitudinal Magnetophotonic Intensity Effect in Plasmonic Crystals Poster [Show abstract]
  • Andrey Kalish, Russian Quantum Center, Russia
  • Vladimir Belotelov, Russian Quantum Center, Russia
  • Anatoly Zvezdin, Russian Quantum Center, Russia
We theoretically study the properties of the longitudinal magnetophotonic intensity effect in plasmonic structures with the magnetic dielectric possessing absorption. The effect is the magnetization-induced resonant change in transmittance. It is shown that there exists an optimal value of the absorption coefficient at which the effect reaches its maximum.
35 - Electromagnetic and Thermal Energy Localization Controlled by Plasmonic Antennas Poster [Show abstract]
  • Valentina Giorgis, Université Catholique, ISEN, Lille, France
  • Rodrigo Lima, Universidade Federal de Alagoas, Maceió, Brazil
  • Andrey Malyshev, Universidad Complutense de Madrid, Spain
<p> We consider graded plasmonic antennas comprising linear arrays of metal nanoparticles of different sizes and varying inter-particle spacings. We demonstrate that the position of electromagnetic field and temperature hotspots in the vicinity of such systems can be controlled by angles of incidence or the wavelength of the excitation.</p>
36 - Amplification and Spontaneous Emission of Plasmons in Photo-Inverted Graphene Poster [Show abstract]
  • A. Freddie Page, Imperial College London, United Kingdom
  • Fouad Ballout, Imperial College London, United Kingdom
  • Ortwin Hess, Imperial College London, United Kingdom
  • Joachim Hamm, Imperial College London, United Kingdom
Graphene, as a sheet conductor, supports surface plasmon modes, which, due to the zero band gap of its electronic stucture, can be absorbed and re-emitted by the creation or anihilation of electron/hole pairs. This opens up the question, whether plasmons with gain can be supported by partially inverting the carrier system. We show that, by calculating the exact complex-frequency plasmon dispersion (\textsc{cfpd}) of such inverted systems, plasmons can be amplified by stimulated emission even in cases of finite scattering rates, finite temperatures, and extrinsic chemical doping. From here, given these non-equilibrium carrier distributions, we investigate the rates of electron-hole recombination via plasmonic channels and find they are a factor of 5 faster than previously predicted.
Media link(s):

See our recent publication in PRB,

http://dx.doi.org/10.1103/PhysRevB.91.075404

37 - Study Of Resonant Processes In Plasmonic Metasurfaces For SPR Sensing Poster [Show abstract]
  • Jakub Lelek , Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czech Republic
  • Pavel Kwiecien, Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czech Republic
  • Jan Fiala, Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czech Republic
  • Ivan Richter, Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czech Republic
Using our proprietary in-house Fourier modal method technique, we investigate selected periodic arrays of nanostructures inspired by metasurfaces and evaluate their potential for surface plasmon resonance (SPR) effect used in sensor applications. We evaluate spectral sensitivities of SPR and relevant figures of merit, enabling direct comparison of various structural morphologies.
38 - Ggraphene for Metamaterials: Synthesis using Do-it-yourself Low-cost Reactor Poster [Show abstract]
  • Zoran Eres, Rudjer Boskovic Institute, Croatia
  • Silvio Hrabar, University of Zagreb, Croatia
This paper reports design of a very low-cost (less than 2000 USD) CVD reactor for graphene synthesis, based on readily available off-the-shelf components. The reactor is intended for in-house graphene synthesis in metamaterial research. The reactor was manufactured and tested, and synthesized graphene samples were found to be of a high quality
39 - Wood Anomalies for S-polarized Light Incident on an Array of Grooves in Metal Poster [Show abstract]
  • Anton Ignatov, Federal state unitary enterprise All-Russia research institute of automatics (VNIIA), Russia
  • Alexander Merzlikin, Federal state unitary enterprise All-Russia research institute of automatics (VNIIA), Russia
  • Alexander Baryshev, Federal state unitary enterprise All-Russia research institute of automatics (VNIIA), Russia
  • Alexey Zablotskiy, Moscow Institute of Physics and Technology, Russia
  • Artur Kuzin, Moscow Institute of Physics and Technology, Russia
Angular reflection spectra of 1D arrays of grooves in a metal film in the Kretschmann configuration has been studied numerically. The case of a wave incident in the plane parallel to the grooves has been considered. For the s-polarized incident wave two types of features in the reflection spectra occur: the first is associated with excitation of channel plasmons in every single groove of the array and the second is the Wood anomaly-like feature.
40 - Amplification of Light in One-dimensional Vibrating Disordered Metal Photonic Crystal Poster [Show abstract]
  • Tsuyoshi Ueta, hysics Laboratory, The Jikei University School of Medicine, Japan
Photon-phonon interaction is considered in a one-dimensional disordered metal photonic crystal, which is metal plates of different thickness arranged in parallel with equi-intervals. Each metal plate is assumed to be artificially driven, and lattice vibration is introduced to the photonic crystal. A simple model is numerically analyzed, and the following novel phenomena are found out. The lattice vibration generates the light of frequency which added the integral multiple of the vibration frequency to that of the incident wave. The incident wave with frequencies near the plasma frequency is resonantly amplified. Resonant peaks change with the frequency and the phase of lattice vibration.
41 - Design And Experimental Validation Of Heat Flow Control With Macroscopic Metaestructures Poster [Show abstract]
  • Daniela Barros Vega, Universidad de Los Andes, Colombia
  • Watson L. Vargas E., Universidad de Los Andes, Colombia
Transformation optics theory led to study the possibility of controlling heat flow. Using concepts of anisotropy and metamaterials, it is possible to design devices for heat cloaking, concentration and rectification effects at the macro-scale. Computational and experimental validations were performed. Both results have shown the desired behavior so far.
Media link(s):

For a graphical abstract follow this link.

42 - Determining the Non-ideal Parallel-Plate Capacitance of a Split-Ring Resonator Gap Poster [Show abstract]
  • Christopher Kodama, Air Force Institute of Technology, USA
  • Ronald Coutu, Air Force Institute of Technology, USA
Terahertz metamaterials typically have non-ideal parallel plate capacitive gaps due to microfabrication limitations. This work examines the exact solution to the square parallel plate capacitor and finds a valid approximation for capacitance in non-ideal geometries, when the gap size is comparable or larger than the dimensions of the plates.
43 - Carpet Cloaking Devices In THz Frequency Range With Two Types Of Low Boundary Poster [Show abstract]
  • Victoria Gill, ITMO University, Russia
  • Anna Vozianova, ITMO University, Russia
  • Mikhail Khodzitsky, ITMO University, Russia
This work is devoted to the numerical calculation of the effective constitutive parameters of the carpet cloaking device and to the numerical simulation of this cloak in COMSOL Multiphysics software for the terahertz frequency range. Two different types of low boundary depends of curvature was considered.
44 - Hybridized Concentric-Twisted DSRRs Leading to Plasmon Induced Transparency and Slow Light and Application in THz Frequencies Poster [Show abstract]
  • Mohammad Parvinnezhad Hokmabadi, University of Alabama, USA
  • Patrick Kung, University of Alabama, USA
  • Seongsin Margaret Kim, University of Alabama, USA
We introduce a novel scheme to generate Plasmon Induced Transparency (PIT) by hybridizing two concentric-twisted double split ring resonators (DSRR). We demonstrate that counter-directional twisting of small SRRs can perturb both SRRs response eventuating new states through red shift of the first and blue shift of the second resonance. Contrarily, by co-directional twisting of small SRRs and focusing on first resonance, we manifest PIT which is formed as a result of splitting the first resonance into two dependent bright modes.
45 - How to Verify a Concept of D-dot Wire/Loop in the Optical Regime – a Feasibility Study Poster [Show abstract]
  • Boris Okorn, Rugjer Boskovic Institute, Croatia
  • Jordi Sancho-Parramon, Rugjer Boskovic Institute, Croatia
  • Silvio Hrabar, Faculty of Zagreb, Croatia
  • Eva Kovacevic, University of Orleans, France
The feasibility of a D-dot wire/D-dot loop experiment in the optical regime is studied. Currently available materials, measurement techniques and fabrication methods, needed for the production of a sample with D-dot-based structure, are compared and discussed.
46 - Efficient Coupling Between Optical Nano-Antennas and nanoscale Aggregates of Quantum Dots Withdrawn [Show abstract]
  • Stuart Earl, The University of Melbourne, Australia
  • Marvin Berger, University of Bayreuth, Germany
  • Thorsten Schumacher, University of Bayreuth, Germany
  • Daniel Gomez, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
  • Timothy James, The University of Melbourne, Australia
  • Timothy Davis, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
  • Markus Lippitz, University of Bayreuth, Germany
  • Ann Roberts, The University of Melbourne, Australia
It is well known that the emission/optical properties of quantum emitters such as quantum dots are influenced by their local electromagnetic environment. We have fabricated structures comprised of silver optical antennas in close proximity to lithographically patterned aggregates of quantum dots. We report on the emission spectra and lifetime of the coupled system as a function of antenna size and antenna-aggregate separation distance
47 - Surface Phonon Polaritons-Using Perpendicular Electric Fields Monitoring In Midinfrared Circular Antennas Fabricated By Atomic Layer Deposition Method Poster [Show abstract]
  • Takahiro Kawano, Ritsumeikan University, Japan
  • Yuhta Kunichika, Ritsumeikan University, Japan
  • Jyunichi Miyata, Ritsumeikan University, Japan
  • Yuhto Yamamoto, Ritsumeikan University, Japan
  • Kenichi Kasahara, Ritsumeikan University, Japan
  • Naoki Ikeda, National Institute for Materials Science (NIMS), Japan
  • Hirotaka Oosato, National Institute for Materials Science (NIMS), Japan
  • Yoshimasa Sugimoto, National Institute for Materials Science (NIMS), Japan
Distribution of electric fields normal to the antenna plane in the depth direction was experimentally investigated by using mid-infrared circular antennas formed on atomic-layer-deposited Al2O3/SiO2/Si and SiO2/Al2O3/Si. The field distribution was estimated by observing the surface phonon polariton signals originating from the SiO2 layer.
48 - Broadband Tunneling-Assisted Transparencyof gradient Dielectric Nanostructures: Theory And The First Experiments Poster [Show abstract]
  • Aleksandr Shvartsburg, Joint Institute for High Temperatures Russian Academy of Sciences, Russia
Gradient all – dielectric nanostructures, based on the controllable nonlocal dispersion and providing broadband antireflection tunneling regime of energy transport in visible and infrared spectral ranges, almost independent upon the nanostructure’s total thickness, are designed and tested.
49 - Demonstration of an Acoustic Metamaterial Using Silica Aerogel Poster [Show abstract]
  • Matthew Guild, Universitat Politecnica de Valencia and U.S. Naval Research Lab, USA
  • Victor Garcia-Chocano, Universitat Politecnica de Valencia, Spain
  • Encarna Villora, National Institute for Materials Science, Japan
  • Kiyoshi Shimamura, National Institute for Materials Science, Japan
  • Jose Sanchez-Dehesa, Universitat Politecnica de Valencia, Spain
In this work, disks of silica aerogel are examined theoretically and experimentally as building elements of an acoustic metamaterial. The demonstrated results show that the flexural motion of the disks can act as a negative effective mass over a broad frequency range below the modal plate resonance.
50 - Loss/Anisotropy Effects on the Signature of Bulk-Plasmon Polariton Modes in the Transmission/Reflection Spectra of Metamaterial Heterostructures Poster [Show abstract]
  • Luiz Eduardo Oliveira, Instituto de Física, Universidade Estadual de Campinas - Unicamp, Brazil
<p> The transmission/reflection spectra of electromagnetic waves through a 1D system containing alternate layers of air and a uniaxial anisotropic left-handed material are investigated. For oblique incidence, even in the presence of loss/absorption, longitudinal bulk-plasmon polariton modes are found in the neighborhood of the plasmon frequency along the optical axis.</p>
51 - Separation of Medium and Sound by Acoustic Metamaterials Poster [Show abstract]
  • Sang-Hoon Kim, Mokpo National Maritime University, Korea (South)
<p> A method of the separation of air and sound in acoustic waves is suggested. It is composed of an array of the resonators and each resonator has a macroscopic subwavelength hole in the center. The principle is based on two wave theories of diffraction and acoustic metamaterials. When the wavelength of the incoming wave is much larger than the size of the holes, it will be diffracted strongly into the holes. The negative effective bulk modulus of the resonator produces evanescent wave with the air holes of subwavelength diameter existed on the surfaces of the plate for macroscopic air ventilation. A model of soundproof plate which is transparent to airflow is designed. The numerical simulation of the soundproof ability with air flow was presented.</p>
52 - Magneto-Optical Effects In Plasmonic Slot Waveguides Poster [Show abstract]
  • Alexey Kuzmichev, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Daria Ignatyeva, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Andrey Kalish, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Vladimir Belotelov, Lomonosov Moscow State University, Faculty of Physics, Russia
We studied two optical modes of the gyrotropic slot waveguide consisted of a magnetic dielectric sandwiched between to different metal walls. Different types of modes are identified including backward anti-symmetric plasmonic mode that has opposite direction of the phase and group velocities. Effect of the magneto-optical nonreciprocity in a transversal magnetic field is revealed and its pecularities for the backward mode are studied.
53 - Synthesis and Characterisation of Water Soluble Self-Passivated Graphene Quantum Dots for Biological Applications Poster [Show abstract]
  • Tanveer Ahmad Tabish, EPSRC Centre for Doctoral Training in Metamaterials (XM2) Department of Engineering University of Exeter, United Kingdom
<p> The excellent photoluminescent properties of Graphene quantum dots (GQDs) makes them suitable candidates for biomedical applications, but their corrosion resistance, passivation behaviour and cytotoxicity have not been extensively studied. Here we report a detailed and systematic study of the passivity of GQDs. The GQDs sample was prepared from multi walled carbon nanotubes (MWCNTs) with green light (455nm) and fully characterized by means of atomic force microscopy (AFM), Fourier transform infrared spectrophotometry (FTIR), Raman spectroscopy, and photoluminescence (PL) and photoluminescence excitation (PLE) analysis. The formation and stability of the passive layer was studied by open circuit potential, cyclic voltammetry (CV) and tafel plots. The electrochemical results also simulated equivalent corrosion measurements suggested by passive layers. In the measured photoluminescence (PL) spectra, the emission peak is shown to be at ∼455 nm, also confirmed by PLE spectra. In addition, the good optical properties of the GQDs are attributed to the self-passivated layer on the surface of the GQDs as revealed by electrochemical tests. The data explores a new generation of coating technology for GQDs that can also profoundly impact biological and biomedical research.</p>
54 - SNOM Imaging Of TE And TM Modes In Silicon Microrings Poster [Show abstract]
  • Federico La China, LENS and Department of Physics, University of Florence, Italy
  • Francesca Intonti, LENS and Department of Physics, University of Florence, Italy
  • Anna Vinattieri, LENS and Department of Physics, University of Florence, Italy
  • Xavier Le Roux, Univ Paris 11, CNRS UMR , Inst Elect Fondamentale (IEF), France
  • W. Zhang, Univ Paris 11, CNRS UMR , Inst Elect Fondamentale (IEF), France
  • Eric Cassan, Univ Paris 11, CNRS UMR , Inst Elect Fondamentale (IEF), France
  • Laurent Vivien, Univ Paris 11, CNRS UMR , Inst Elect Fondamentale (IEF), France
  • Massimo Gurioli, LENS and Department of Physics, University of Florence, Italy
We present a sub-wavelength imaging of the modes localized in silicon microring resonators, obtained by combining near-field scanning optical microscopy with resonant scattering spectroscopy. The different spatial distribution of the TE and TM modes allows us to clearly identify the two mode families.
55 - Eigenmodes in Silicon Nanotoroidal Structures Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
<p> We demonstrate experimentally for the first time eigen modes in silicon nanotoroidal structures in visible wavelengths. The structures have been designed and created using recently developed laser printing technology followed by FIB or HIM processing.</p>
56 - Morphing : A Twist To Transformation Optics Poster [Show abstract]
  • Ronald Aznavourian, CNRS - Institut Fresnel, France
Morphing turns out to be a fast and accurate tool for wave pictures associated with an ellipti-cal invisibility cloak of certain eccentricity deduced from the exact computation (e.g. using a finite element method) of a circular and an elliptical cloak of larger eccentricity, thereafter called the source and desti-nation images. We shall ask ourselves why this is the case and whether this holds for more general trans-formation optics based media.
57 - Fick's second law transformed: one path to cloaking in mass diffusion Poster [Show abstract]
  • Tania Puvirajesinghe, CRCM, Aix-Marseille University, France
Abstract We have adapted the concept of transformational thermodynamics, whereby the flux of temperature is controlled via anisotropic heterogeneous diffusivity, for the diffusion and transport of mass concentration. The n-dimensional, time-dependent, anisotropic heterogeneous Fick's equation is considered, which is a parabolic partial differential equation also applicable to heat diffusion, when convection occurs, for example, in fluids. We initially used finite-element computations to model liposome particles surrounded by a cylindrical multi-layered cloak in a water-based environment, and for a spherical multi-layered cloak consisting of layers of fluid with an isotropic homogeneous diffusivity, deduced from an effective medium approach [1]. Independent research groups have applied our model to applications implicating the protection of steel by protecting concrete against chloride ions penetration [2] as well as for the design of water-based invisibility cloaks [3]. We now investigate the utility of the biocloak for vectorization of drugs [4].
58 - Numerical Method to Study Metamaterial Photonic and Phoxonic Crystals in Higher Dimension Poster [Show abstract]
  • Takamichi Terao, Gifu university, Japan
Metamaterial photonic crystals composed of dispersive left-handed and right-handed materials were investigated numerically. In two-dimensional system, the distinct stop band was observed when the dispersive metamaterials are embedded in a positive-refractive-index medium. A novel numerical technique for the finite-difference frequency-domain method, which is applicable to dispersive (meta)materials, is also proposed.
59 - Full Measurement of the Stokes Parameters of a Light Beam using On-Chip Silicon Nanoantennas Poster [Show abstract]
  • Alejandro Martinez, Nanophotonics Technology Center, Spain
  • Alba Espinosa-Soria, Nanophotonics Technology Center, Spain
  • Sara Mas, Nanophotonics Technology Center, Spain
  • Amadeu Griol, Nanophotonics Technology Center, Spain
  • Francisco Jose Rodriguez Fortuño, King's College London, UK
Beam polarimetry is a versatile tool in optical technology enabling the measurement of the light polarization state. In this work, we demonstrate an on-chip polarization analyzer working at telecom wavelengths that allows for a direct measurement of the Stokes parameters of an incoming plane wave. The analyzer consists of three silicon nanoantennas coupled to three waveguides (having six outputs) so that each nanoantenna responds to a certain polarization state by changing the amount of optical power coupled to each waveguide as well as the direction of propagation along the coupled waveguide.
60 - Split Ring Resonators enable Ultrastrong Light-Matter Interaction Poster [Show abstract]
  • Curdin Maissen, ETH Zürich, Switzerland
  • Giacomo Scalari, ETH Zürich, Switzerland
  • Mattias Beck, ETH Zürich, Switzerland
  • Jérôme Faist, ETH Zürich, Switzerland
The ultrastrong interaction of matter with the LC-mode of SRRs is demonstrated in the THz frequency range. By scaling the SRR dimensions, the anti-crossing between the SRRs and the cyclotron transition of a two dimensional electron gas is observed. For small structures, where the wavelength of the SRR-resonance has a sub-linear dependence on SRR-dimensions, we start to observe a geometry-induced reduction of the light-matter interaction strength.
61 - Tunable Magnetic Resonances Of Composite Dielectric-Graphene Rings Poster [Show abstract]
  • Michael Bakunov, University of Niznhy Novgorod , Russia
  • Svetlana Kuznetsova, University of Niznhy Novgorod , Russia
  • Alex Maslov, University of Niznhy Novgorod , Russia
A resonator made of a planar high-permittivity dielectric ring coated with graphene is considered. It is shown that the resonant magnetic response of the ring to an axially applied time-harmonic magnetic field can be efficiently tuned by electrical gating of graphene.
62 - Magnetic Matter Spin Waves with Negative Group Velocity Poster [Show abstract]
  • Roberto Zivieri, Department of Physics and Earth Sciences, University of Ferrara, Italy
It is shown that in in-plane magnetized ferromagnetic films there exist backward volume waves with a negative group velocity anti-parallel to the in-plane wave vector of propagation. Analytical expressions of the group velocity are given. Analogies and differences with electromagnetic waves propagating in backward-wave isotropic materials are discussed.
63 - Nonlocal Transformation Optics for Dispersion Engineering Poster [Show abstract]
  • Massimo Moccia, University of Sannio, Italy
  • Giuseppe Castaldi, University of Sannio, Italy
  • Vincenzo Galdi, University of Sannio, Italy
  • Andrea Alù, The University of Texas at Austin, USA
  • Nader Engheta, University of Pennsylvania, USA
We explore possible applications of our previously-introduced nonlocal-transformation-optics framework to scenarios of interest for dispersion engineering. In particular, we address the design of nonreciprocal effects (such as unidirectional propagation), as well as exotic effects such as the "frozen-mode" regime and Dirac-cone-type dispersion.
64 - Far Field Imaging of Subwavelength Features from the Phonon Response in Single Crystal Structures Poster [Show abstract]
  • Diego Alves Barros, Universidade do Estado do Rio Grande do Norte, Brazil
  • Thomas Dumelow, Universidade do Estado do Rio Grande do Norte, Brazil
We investigate how the phonon response in a system of two single crystals can be used for far field imaging of subwavelength features. By cutting the crystals into suitably designed prisms, an expanded image can be obtained and projected into the far field. We show simulations using triglycine sulfate.
65 - Possible Realizations of Spaser Operation Poster [Show abstract]
  • Evgeny Andrianov, All-Russia Research Institute of Automatics, Russia
  • Alexander Pukhov, Institute for Theoretical and Applied Electromagnetics RAS, All-Russia Research Institute of Automatics, Moscow Institute of Physics and Technology, Russia
  • Alexander Dorofeenko, Institute for Theoretical and Applied Electromagnetics RAS, All-Russia Research Institute of Automatics, Moscow Institute of Physics and Technology, Russia
  • Alexey Vinogradov, Institute for Theoretical and Applied Electromagnetics RAS, All-Russia Research Institute of Automatics, Moscow Institute of Physics and Technology, Russia
  • Alexander Lisyansky, Department of Physics, Queens College of the City University of New York, USA
<p> We give a comparative analysis of different realization of surface plasmon amplification: lumped spaser, in which the field is localized at bounded subwavelength inclusion and spasers driven by an external field. It is shown that transition from lumped spasers to driven ones makes easy the achievement of conditions when coherent near fields prevail over incoherent ones.</p>
66 - The Many Stable Shapes of 4-Fold Tessellations Poster [Show abstract]
  • Peter Dieleman, Leiden University, Netherlands
  • Scott Waitukaitis, Leiden University, Netherlands
  • Martin van Hecke, Leiden University and FOM Institute AMOLF, The Netherlands
The simplest possible fold pattern that allows for rigid folding motion, the 4-vertex, is a one degree-of-freedom mechanism with two distinct branches of motion. When we tile 4-vertices into a sheet, a structure emerges that has exponentially many 1 D.o.F. branches.
67 - Finite Difference Time–Domain Modelling of Optical Effects in Magnetoplasmonic Crystals Poster [Show abstract]
  • Andrey Zakirov, KinTech Lab, Russia
  • Ivan Goryachev, Keldysh Institute of Applied Mathematics, Russia
<p> This paper deals with numerical research of magneto-optical effects inside magnetoplasmonic crystals (MPC). Numerical simulation allows to investigate both the propagation of surface plasmon modes and the generation of waveguide modes. Influence of external magnetic fields on electromagnetic wave propagation inside MPC also is considered. We introduce new open source finite-difference time-domain (FDTD) code for numerical simulation with the assistance of up-to-date GPU architectures and CUDA technology. Due to high performance algorithms named DiamondTile it is possible to deal with fast simulation and interactive regime. The benchmark performance of our code is offered. Numerical simulation are verified and compared with experimental and theoretical results. Angular-frequency transmitance spectra of the MPC is obtained and discussed.</p>
68 - Mechanical Waves Deflection/Damping With Seismic Metamaterials Poster [Show abstract]
  • Bogdan Ungureanu, Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, France
  • Stephane Brûlé, Ménard, 91 620 Nozay, France, France
  • Younes Achaoui, Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, France
  • Stefan Enoch, Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, France
  • Sebastien Guenneau, Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, France
In this paper we have presented some recent advances regarding the reduction of major earthquake effects on urban infrastructures, applying invisibility methods assisted by innovative technologies, respectively anti-seismic shield and seismic dampers.
69 - Perfect Broadband Acoustic Absorption by Critical Coupling of Lossy Resonators Poster [Show abstract]
  • Vicent Romero García, Laboratoire d'Acoustique de l'Université du Maine, France
  • Georgios Theocharis, Laboratoire d'Acoustique de l'Université du Maine, France
  • Aurelien Merkel, Laboratoire d'Acoustique de l'Université du Maine, France
  • Olivier Richoux, Laboratoire d'Acoustique de l'Université du Maine, France
  • Vincent Tournat, Laboratoire d'Acoustique de l'Université du Maine, France
  • Vincent Pagneux, Laboratoire d'Acoustique de l'Université du Maine, France
The condition to obtain perfect broadband absorption in systems made of lossy resonant elements coupled to a rigid backing waveguide is theoretically and experimentally discussed in this work. We obtain a procedure to engineer the losses of the system to find the condition of perfect absorption using the information provided by the zeros of the reflection coefficient in the complex frequency plane. The results shown here can have applications in several branches of physics as optics, microwaves and acoustics.
70 - Tunable Magneto-Optical Effects in Antiferromagnetic Structures Poster [Show abstract]
  • Rair Macedo, University of Glasgow, United Kingdom
  • Thomas Dumelow, Departamento de Fisica, Universidade do Estado do Rio Grande do Norte, Costa e Silva, 59625620, Mossoro RN, Brazil
  • Robert L. Stamps, SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
Close to the magnon resonance frequency, antiferromagnets act as indefinite permeability media, i.e., not all their permeability tensor components are of the same sign. This behavior can induce a series of optical effects such as all-angle negative refraction. In the presence of an external field, a non-reciprocal lateral shift on reflection is also possible. We illustrate these effects using the example of MnF$_2$. In this crystal both the angle of refraction and the Goos-H\"anchen shift become tunable when an external magnetic field is applied.
Media link(s):

This work is based on:

Tunable all-angle negative refraction using antiferromagnets

and

Spin canting induced nonreciprocal Goos-Hänchen shifts

71 - The Thermal And Relativistic Electromagnetic Responses Of The Free Electron Gas Poster [Show abstract]
  • Carlos Alberto Aragão de Carvalho, IF/UFRJ, Brazil
Put your abstract We calculate the temperature dependent electromagnetic responses of a relativistic gas of free electrons using quantum field theory methods. Polarization and magnetization are related to the polarization tensor of finite temperature QED. They depend on both the electric and magnetic fields. We compute the refraction index from the wave equations in the medium. In the non-relativistic limit, expressions reduce to well-known results. Our generalized expressions depend on two independent functions, and should be relevant in astrophysical and synchrotron environments.
72 - Spectral Effectiveness Of Engineered Thermal Devices In The Frequency Regime Poster [Show abstract]
  • David Petiteau, Institut Fresnel / Aix-Marseille Université, France
  • Sébastien Guenneau, Institut Fresnel / Aix-Marseille Université, France
  • Michel Bellieud, LMGC, UMR-CNRS 5508, Université Montpellier II, France
  • Myriam Zerrad, Institut Fresnel / Aix-Marseille Université, France
  • Claude Amra, Institut Fresnel / Aix-Marseille Université, France
We analyse several thermal devices such as invisibility cloaks or concentrators designed via different geometric transforms. We define a quantitative criterion in the frequency regime for the effectiveness of these thermal devices through the calculation of the standard deviation of the isotherms and of the heat flux distribution. We also study the effectiveness of engineered multilayered thermal devices defined through homogenization process using concentric or orthoradial layers. Thus, we determine the number of layers required to approach ideal thermal devices effectiveness.
73 - Refractive Index Sensors Based on Interference in Ultrathin Random Composite Plasmonic Films Poster [Show abstract]
  • Jordi Sancho Parramon, Rudjer Boskovic Institute, Croatia
  • Vesna Janicki, Rudjer Boskovic Institute, Croatia
  • Boris Okorn, Rudjer Boskovic Institute, Croatia
  • Hrvoje Zorc, Rudjer Boskovic Institute, Croatia
Refractive index sensors based on localized surface plasmon resonance rely on tracking the extinction properties changes when the dielectric environment of nanoparticles is modified. It is shown that improved sensing characteristics can be obtained if reflectance measurements of a nanoparticle system located close to a metal surface are used.
74 - Field Visualisation of Waveform-Selective Metasurfaces Poster [Show abstract]
  • Hiroki Wakatsuchi, Nagoya Institute of Technology, Japan
  • Chris Smartt, University of Nottingham, UK
We demonstrate numerical simulations of recently reported waveform-selective metasurfaces by developing a new electromagnetic (EM) simulation method based on the transmission line modelling (TLM) method. As opposed to a conventional method integrating an EM simulator with a circuit simulator, this simulation method allows us to fully visualise electromagnetic fields around the metasurfaces. Therefore, this demonstrates how the waveform selectivity varies the surrounding fields in response to the pulse width of the incoming wave even at the same frequency. This simulation method is expected to be useful for testing other kinds of circuit-based metasurfaces and metamaterials as well.
75 - Higher Order Mode Excitation in Eccentric Active Nano-Particles for Tailoring of the Near-Field Radiation Poster [Show abstract]
  • Rasmus Ø. Thorsen, Technical University of Denmark, Denmark
  • Samel Arslanagic, Technical University of Denmark, Denmark
We examine the excitation of resonant modes inside eccentrically layered cylindrical active nano-particles. The nano-particle is a three-layer structure comprised of a silica core, a free-space middle layer, and an outer shell of silver. It is shown that a concentric configuration, initially designed to excite e.g., a strong dipole mode, induces, at the cost of this mode, a progressively stronger asymmetric quadrupole mode with the increasing eccentricity of the nano-particle. The direction of the main beam of this quadrupole mode, which can be further optimized by proper adjustments of the gain constant, is shown to be controlled by the direction of the core displacement. The present eccentric active nano-particles may provide alternative strategies for directive near-field radiation relative to the existing designs.
76 - Recent Developments in the Design of Microwave Mantle Cloaks with Improved Performance and Relative Applications Poster [Show abstract]
  • Alessio Monti, Niccolò Cusano University, Italy
  • Lorenza Tenuti, University of Trento, Italy
  • Giacomo Oliveri, University of Trento, Italy
  • Jason Soric, University of Texas at Austin, USA
  • Andrea Alù, University of Texas at Austin, USA
  • Andrea Massa, University of Trento, Italy
  • Alessandro Toscano, Roma Tre University, Italy
  • Filiberto Bilotti, Roma Tre University, Italy
<p> In this contribution, we present our latest results concerning the design of microwave mantle cloaking devices and show some of their applications in different operative scenarios. We start by describing the analytical models of the anisotropic metasurfaces needed to achieve a scattering cross section (SCS) reduction for any polarization of the incident field and, then, we prove the effectiveness of these formulas in a representative antenna scenario. Finally, we show that the proposed formulas still hold in the case of multilayered cloaks that, being able to tailor different scattering modes excited by an object, can be successfully used to cloak non-electrically small objects and/or achieve a wideband cloaking effect of 2D objects.</p>
77 - Left-handed Properties Of Layered Chiral Structure In The Millimeter Waveband Poster [Show abstract]
  • Sergey Polevoy, O.Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Ukraine
  • Sergey Tarapov, O.Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Ukraine
The left-handed properties of layered chiral structure based on rosette massive has been demonstrated by the numerical simulation and experimentally for the waves with a one of circular polarization in the millimeter waveband. Our simulation model helps to explain the unusual dependence of the frequency of area with the highest values of the polarization plane rotation angle on the structure pitch.
Media link(s):

Gif-animation of simulation of propagation RCP-wave through the layered chiral structure at f = 37.25 GHz:
http://i66.fastpic.ru/big/2015/0320/31/fef248d2bdc9d9d24d0580647974fc31.gif

78 - DNA-Type Helix With Optimal Shape In Soft X-Ray Range Poster [Show abstract]
  • Ihar Faniayeu, Research Institute of Electronics, Shizuoka University , Japan
  • Igor Semchenko, Department of General Physics, Gomel State University, Belarus
  • Sergey Khakhomov, Department of General Physics, Gomel State University, Belarus
  • Alexei Balmakov, Department of Computational Physics and Department of Material Sciences, Zernike Institute for Advanced Materials, University of Groningen,, The Netherlands
The present study considers half-periodic segment of the DNA-type helix as bianisotropic particle. It has been established that the half-periodic segment of helix has the same distribution of current as long DNA-type helix. The geometric parameters of perfect conductive helix are taken from measured results of real DNA helix. The numerical simulations are used to calculate an individual polarizabilities of DNA-type helix in soft X-ray range. As a result, such bianisotropic particle has equally relevant dielectric and magnetic moments at resonance wavelength. The obtained properties open opportunities for creating low reflectivity polarizers, perfect absorbers, antireflection coatings, and metamaterials with negative refractive index based on DNA-type helices.
79 - Nearly Perfect Plasmonic Absorber Based On Heavily-Doped Semiconductor Poster [Show abstract]
  • Ihar Faniayeu, Research Institute of Electronics, Shizuoka University , Japan
  • Igor Semchenko, Department of General Physics, Gomel State University, Belarus
  • Vygantas Mizeikis, Research Institute of Electronics, Shizuoka University , Japan
Design of ultrathin single-layer plasmonic absorber for infrared spectral range is proposed and characterized using numerical simulations. Nearly perfect absorption is predicted for optimized structure geometry, with the possibility to obtain both narrow and broadband response by tuning the structure geometry and parameters of the initial material, assumed to have optical properties of a heavily-doped semiconductor. The absorber exhibits consistent polarization-independent performance across a wide range of frequencies and incident angles. Such structures are easy to fabricate in thin semiconductor films by lithography and dry etching, and may find potential application in solar cells, bolometric detectors and thermal imaging devices.
80 - Beam Steering Lens Based On Transformation Electromagnetics Concept Poster [Show abstract]
  • Jianjia Yi, IEF, Univ. Paris-Sud, CNRS, UMR 8622, France
  • Shah Nawaz Burokur, Institut d'Electronique Fondamentale, France
  • André de Lustrac, Institut d'Electronique Fondamentale, France
Based on transformation electromagnetics concept, the design procedure of a lens antenna, which steers the radiated beam of a primary source, is presented. Laplace’s equation is adopted to construct the mapping between the virtual space and the physical space. Full wave simulations are performed to validate the model. The numerical results show that, when placing the lens antenna above a microstrip patch array, the radiated beam is deflected to an off-normal direction.
81 - THz Wakefield Radiation Generation Via Dielectric Bragg Waveguide Poster [Show abstract]
  • Emmy Sharples, Lancaster university and the cockcroft institue, United Kingdom
  • Rosa Letizia, Lancaster university and the cockcroft institue, United Kingdom
In this paper, the wakefield response of a dielectric Bragg waveguide (DBW) driven by an electron bunch is reported. Starting from the theory for planar Bragg reflectors, an analytical approach to designing this structure is derived. The DBW has applications as high-power THz radiator and for high-gradient acceleration.
82 - Plasmon Resonance on the Copper Film Deposited on Fiber with Tilted Bragg Gratings Poster [Show abstract]
  • Igor Nechepurenko, All-Russia Research Institute of Automatics, Moscow, Russia
  • Alexander Dorofeenko, All-Russia Research Institute of Automatics, Moscow, Russia
  • Igor Bykov, Institute for Theoretical and Applied Electromagnetics RAS, Moscow, Russia
  • Kirill Tomyshev, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
  • Oleg Butov, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
  • Sergey Nikitov, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
<p> Excitation of plasmon resonance on the copper film deposited on fiber with tilted Bragg gratings is experimentally observed. It is shown that within several hours plasmon resonance undergo red shift and it with significantly increases. Both effects may be explained by oxidation processes. The time of plasmon copper film degradation has been measured. The possibility of implementation of copper as plasmonic material for refractive index measurements is discussed.</p>
17:00 - 19:00 - Oral sessions (Tuesday afternoon 2)
17:00 - Plasmonics VI

Session chairperson(s): Maria Kafesaki

17:00 - 17:30 - Emission Rate Control with Plasmonic Nanoantennas Invited oral [Show abstract]
  • Maiken Mikkelsen, Duke University, USA
<p> Plasmonic cavities and nanoantennas can strongly modify the excitation and decay rates of nearby emitters by altering the local density of states. Here, we demonstrate large enhancements of fluorescence and spontaneous emission rates of dye molecules embedded in plasmonic nanoantennas with sub-10-nm gap sizes.</p>
17:30 - 17:45 - Spectral Interferometric Microscopy Reveals Absorption by Individual Optical Nanoantennas from Extinction Phase Oral [Show abstract]
  • Sylvain Gennaro, Blackett Laboratory, Imperial College London , United Kingdom
  • Yannick Sonnefraud, Blackett Laboratory, Imperial College London , United Kingdom
  • Niels Verellen, K.U Leuven, Belgium
  • Pol Van Dorpe, IMEC , Leuven, Belgium
  • Victor Moshchalkov, K.U Leuven, Belgium
  • Stefan Maier, Blackett Laboratory, Imperial College London , United Kingdom
  • Rupert Oulton, Blackett Laboratory, Imperial College London , United Kingdom
<p> We demonstrate a method to extract absorption and scattering from phase and intensity measurements of extinction from a single optical nano-antenna by developing a novel spectrally resolved interferometer integrated within a confocal microscope.</p>
17:45 - 18:00 - Transformation Optics Applied to EELS Oral [Show abstract]
  • Matthias Kraft, Imperial College London, United Kingdom
<p> Transformation optics has proved a valuable tool in the study of plasmonic systems.Here we report on a new field of application: Electron energy loss spectroscopie for plasmonic nano-particles.</p>
18:00 - 18:15 - Chiral Ag Nanostructures as Optical Antennas Oral [Show abstract]
  • John Gough, Trinity College Dublin, Ireland
  • David McCloskey, Trinity College Dublin, Ireland
  • Jose Caridad, Technical University of Denmark, Denmark
  • Vojislav Krstic, FAU Erlangen-Nurnberg, Germany
  • Marcus Muller, TU Dresden, Germany
  • Nikolai Gaponik, TU Dresden, Germany
  • Louise Bradley, Trinity College Dublin, Ireland
Directional and circularly polarised emission from quantum dots coupled with chiral Ag nanostructures has been demonstrated. The far-field emission from the quantum dots coupled to the chiral nanostructures displays directionality in the emission pattern and more than 17% circular polarisation, following the handedness of the chiral structure.
18:15 - 18:30 - Plasmon-Enhanced Energy Transfer in a Hybrid System using Silver Nanobox Array Geometries Oral [Show abstract]
  • Luke Higgins, Trinity College Dublin, Ireland
  • Vasilios Karanikolas, Trinity College Dublin, Ireland
  • Cristian Marocico, Trinity College Dublin, Ireland
  • Peter Parbrook, Tyndall National Institute, Ireland
  • Louise Bradley, Trinity College Dublin, Ireland
Silver metal nanobox arrays are used to demonstrate plasmon-enhanced non-radiative energy transfer from an InGaN/GaN quantum well to a ~80 nm thick layer of CdSe/ZnS quantum dots embedded in PMMA. Three arrays of varying periodicity are fabricated by helium-ion lithography. Plasmon-enhanced non-radiative energy transfer efficiencies up to 30% are observed.
18:30 - 18:45 - Influence of Layer Eccentricity on the Resonant Properties of Cylindrical Active Coated Nano-Particles Oral [Show abstract]
  • Samel Arslanagic, Technical University of Denmark, Denmark
  • Rasmus Ø. Thorsen, Technical University of Denmark, Denmark
The influence of the layer eccentricity on resonances in active silver-core/silica-shell particles is reported. The super-resonant states of the concentric cases are significantly influenced by eccentricity, this being more profound for the larger cores. Slight displacements of the core and shell parts in these particles are likely to occur in standard fabrication processes, justifying the relevance of the results.
18:45 - 19:00 - Asymmetric Transmittance of the Higher Order Surface Plasmon Polariton Bragg Beams Oral [Show abstract]
  • Vladimir Kuzmiak, Institute of Photonics and Electronics, Czech Republic
  • Alexei Maradudin, Department of Physics & Astronomy, University of California, Irvine, U.S.A.
<p> We study theoretically the propagation of a surface plasmon polariton(SPP) propagating along the interface between air and a semi-infinite metal region consisting of two metals with a periodically modulated interface between them. Such a structure reveals asymmetric transmittance for a SPP incident on it from opposite sides. This asymmetric transmission of a SPP is based on the suppression of the 0-order SPP Bragg beam while the diffraction efficiencies of the +1 and -1 Bragg beams which do not satisfy reciprocity can be modified by varying the lattice constant of the grating and/or the angle of incidence. We predict this property of the structure by using a theoretical thin phase screen approach and confirm it by computer simulation calculations.</p>
17:00 - Metasurfaces III

Session chairperson(s): Jensen Li

17:00 - 17:30 - Spin Hall Effect of Light at Metasurfaces Invited oral [Show abstract]
  • Xiaobo Yin, University of Colorado Boulder, USA
<p> The ubiquitous spin-orbit interaction destroys the rotational symmetry of particles’ spin degree of freedom and introduces a universal transverse spin current regardless the particle nature of an electron or photon. Here we show that an optically thin metasurface with a rapid phase gradient over the wavelength scale refracts light anomalously and supports negative photonic spin Hall effect when a light beam is negatively refracted. The position-sensitive measurement reveals a broadband transverse motion of circularly polarized light through the symmetry breaking metasurface even at normal incidence. Moreover, we will show how the inversion symmetry in the 2D metasurfaces plays a role and generates a new type of photonic Hall effect.</p>
17:30 - 18:00 - Intertwined Spirals for Metasurfaces and High Impedance Surfaces Invited oral [Show abstract]
  • Andrea Vallecchi, Queen's University Belfast, United Kingdom
  • Alex Schuchinsky, Queen's University Belfast, United Kingdom
A broad class of metasurfaces comprised of periodic arrays of sub-wavelength interwoven multifilar spiral shaped strips and slots in conducting screens is considered. Their distinctive features are illustrated in the context of applications to frequency selective and high impedance surfaces and to voltage controlled reconfigurable metasurfaces.
18:00 - 18:15 - Direct Dark Modes Excitation Through Symmetry Matching in Z-shape Atoms Bilayer Enantiomeric Metamaterials Oral [Show abstract]
  • Elena Bochkova, IEF, Univ. Paris-Sud, France
  • Shah Nawaz Burokur, IEF, Univ. Paris-Sud, France
  • André de Lustrac, IEF, Univ. Paris-Sud, France
  • Anatole Lupu, IEF, Univ. Paris-Sud, France
<p> We bring evidence for the mechanism of direct excitation of dark mode in a double-layered structure consisting of Z-shape atoms enantiomeric metasurfaces separated by a dielectric. The electromagnetic behavior of such structure is investigated in the microwave regime. Depending on the orientation of the polarized electromagnetic field with respect to the Z atom topology and the incident plane we demonstrate direct field coupling excitation of quadripolar electric mode as well as dipolar and quadripolar magnetic modes. The proposed approach provides more flexibility in engineering dark mode resonances.</p>
18:15 - 18:30 - Controlling the Direction, Topological Charge, and Spectrum of Transition Radiation with Holographic Metasurfaces Oral [Show abstract]
  • Guanhai Li, Shanghai Institute of Technical Physics, China
  • Brendan Clarke, University of Southampton, UK
  • Jinkyu So, University of Southampton, UK
  • Kevin MacDonald, University of Southampton, UK
  • Xiaoshuang Chen, Shanghai Institute of Technical Physics, China
  • Wei Lu, Shanghai Institute of Technical Physics, China
  • Nikolay Zheludev, University of Southampton, UK
We show experimentally that wavefront - the direction, spectral composition and phase profile of light emission - stimulated by free electron injection into plasmonic and dielectric media can be controlled with high finesse using holographic nanostructures.
18:30 - 19:00 - Polarization Selective Beam Shaping Using Nanoscale Dielectric Metasurfaces Invited oral [Show abstract]
  • Uriel Levy, Deapartment of Applied Physics, The Hebrew University of Jerusalem, Israel
<p> We present our recent work on dielectric metasurfaces for phase, amplitude and polarization control. The control over the properties of light can be achieve by controlling the retardation of a subwavelength periodic structure or by controlling the resonances of nano beams in semiconductors. We discuss approaches for achieving broadband retardation of light by tailoring the dispersion properties of the metasurface. Both guided mode and free space configurations are considered.</p>
17:00 - Microwave and RF Metamaterials II

Session chairperson(s): Cristian Ciraci

17:00 - 17:30 - Beyond Anderson Localization: Anomalous Transmission of Waves Through Media with Lévy Disorder Invited oral [Show abstract]
  • A. A. Fernández-Marín, Instituto de Física, Benemérita Universidad Autónoma de Puebla, Mexico
  • J. A. Méndez-Bermúdez, Instituto de Física, Benemérita Universidad Autónoma de Puebla, Mexico
  • J. Carbonell, Universitat Politècnica de València, Spain
  • F. Cervera, Universitat Politècnica de València, Spain
  • J. Sánchez-Dehesa, Universitat Politècnica de València, Spain
  • Victor A. Gopar, Departamento de Física Teórica, Universidad de Zaragoza, Spain
We provide experimental evidence that waves can be anomalously localized, in relation to the standard Anderson localization, by introducing random configurations of the disorder that follow a distribution with a power-law tail, i.e., a Lévy-type distribution. Using a microwave waveguide with dielectric slabs randomly placed, we show that if the spacing between slabs follow a Lévy-type distribution, unconventional properties in the microwave-transmission fluctuations appear, revealing the presence of anomalous localization. Our analytical model describes the experimental results.
Media link(s):

See

 F. Falceto and V. A. Gopar, ``Conductance through quantum wires with Lévy-type disorder: Universal statistics
in anomalous quantum transport''  Europhysics Letters vol.  92, p. 57014, 2010.

A. A. Fernandez-Marin, J. A. Mendez-Berm\'udez, J. Carbonell, F. Cervera, J. Sanchez-Dehesa, and V.  A. Gopar
``Beyond Anderson Localization in 1D: Anomalous Localization of Microwaves in Random Waveguides,'' Physical Review Letters, vol. 113, p. 233901, 2014.

17:30 - 17:45 - Targets with Plasmonic Coatings for RCS Calibration Tests Oral [Show abstract]
  • Olivier VACUS, CEA, France
  • Carol SAINT-FLOUR, CEA, FRANCE
In anechoic chambers, the quality of RCS measurements is limited by couplings with the walls. In this work new calibration targets are introduced to assess these couplings. The idea is to get null monostatic RADAR Cross Section at some desired frequency by designing suitable plasmonic coatings. Such coatings are obtained on a metallic object by performing periodic grooves. They are thus an interesting alternative to standard RADAR Absorbing Materials whose constitutive parameters are not always well-known. Under a rotational symmetry assumption, very accurate RCS computations are possible up to several tens of GHz.
17:45 - 18:00 - Broadband and Wide-Angle Microwave Absorption with Resistive Films Printed on a Flexible Polyethylene Terephthalate Substrate Oral [Show abstract]
  • Sang Lam, Department of Electrical & Electronic Engineering, Xi, China
A low-cost ultra-thin design (< 5% lambda0) of microwave absorbing material is presented for easy implementation by printed electronics techniques. It consists of a resistive ground plane coated on one side of a flexible polyethylene terephthalate (PET) sheet and printed on the other side a perforated resistive film, respectively with thicknesses of 100 µm, 250 µm and 100 µm. A square lattice of holes is used for the perforation which allows the absorber’s partial transparency for visible light. With a conductivity of 80 S/m for the resistive films on both sides of the PET substrate, the design gives microwave absorption of more than 50% from 20 GHz to 56 GHz. The good absorption is valid over a wide range of incidence angles, in particular up to 70 degree for a narrow frequency band from 25 to 30 GHz.
18:00 - 18:15 - Wireless Energy Transfer by Means of Metamaterial Components Oral [Show abstract]
  • Antonios Lalas, Aristotle University of Thessaloniki, Greece
  • Nikolaos Kantartzis, Aristotle University of Thessaloniki, Greece
  • Theodoros Tsiboukis, Aristotle University of Thessaloniki, Greece
A systematic investigation regarding the efficiency of a new wireless power transfer (WPT) system, which incorporates metamaterial building blocks as its fundamental resonators, is comprehensively pursued in this paper. The proposed configuration exhibits a significant improvement of the power delivered to the load as well as a promising minimization of the interaction with adjacent devices.
18:15 - 18:30 - Terminal Optimization for Wireless Power Transfer with Capacitor-Connected Grids Metamaterial Waveguides Oral [Show abstract]
  • Yue Li, Department of Engineering, University of Oxford, United Kingdom
  • Christopher J. Stvens, Department of Engineering, University of Oxford, United Kingdom
Capacitor-Connected Grids (CCG) are a recently developed structure, in which additional electric coupling is introduced to conventional purely magnetically coupled magneto-inductive waveguides (MIW). This overcomes the limitation on coupling strength from conventional MIWs. CCG’s potential to be used as ultra-wide band data transfer channels has been demonstrated in previous studies. This paper explores the possibility for using CCG as a power transfer channel by studying terminal matching conditions which can give the optimum power transfer efficiency. The result shows that the matching condition found in this study allows the optimal power transfer efficiency limited only by attenuation.
18:30 - 18:45 - Line-Defect Magneto-Inductive Waveguides and Waveguide Components Oral [Show abstract]
  • Krystallo Hadjicosti, Imperial College London, United Kingdom
  • Stefan A. Maier, Imperial College London, United Kingdom
  • Oleksiy Sydoruk, Imperial College London, United Kingdom
<p> We study theoretically magneto-inductive waveguides made by defect lines in metamaterial surfaces that comprise coupled split-ring resonators. The defects are introduced by changing the resonant frequency of the rings. We derive the wave dispersion relation and show how its properties depend on the sign and the strength of the inter-element coupling and the relationship between the resonant frequencies. We also demonstrate wave propagation along a 90-degree waveguide bend. The results show potential for novel planar magneto-inductive components.</p>
18:45 - 19:00 - Total Absorption by a Low-Loss Dielectric Thin Layer on Top of a Metallic Metasurface Oral [Show abstract]
  • Ana Díaz-Rubio, Polytechnic University of Valencia, Spain
  • Alastair Hibbins, University of Exeter, UK
  • Jorge Carbonell, Polytechnic University of Valencia, Spain
  • José Sánchez-Dehesa, Polytechnic University of Valencia, Spain
<p> The experimental demonstration of the total absorption of electromagnetic P-waves impinging on a low-loss dielectric thin layer covering a patterned metallic surface is here reported. A semi-analytical model has been employed to design a metallic grating of coaxial cavities that enhances the absorbing properties of the dielectric thin layer covering the surface. The experimental characterization of three samples shows that total absorption peaks are obtained at the frequencies predicted by the model. It is also demonstrated that the peak position is tunable with the cavity length.</p>
17:00 - Active, non-Foster, and PT-symmetric Metamaterials II

Session chairperson(s): Alejandro Martinez

17:00 - 17:15 - Theory of the Surface Plasmon Distributed Feedback Laser Oral [Show abstract]
  • Alexander Zyablovsky, All-Russia research institute of automatics, Russia
  • Vladislav Shishkov, All-Russia research institute of automatics, Russia
  • Eugeniy Andrianov, All-Russia research institute of automatics, Russia
  • Alexey Vinogradov, Institute for Theoretical and Applied Electromagnetics, Russia
  • Alexander Pukhov, Institute for Theoretical and Applied Electromagnetics, Russia
  • Alexander Dorofeenko, Institute for Theoretical and Applied Electromagnetics, Russia
  • Alexander Lisyansky, Queens College of the City University of New York, USA
<p> We present the theoretical and numerical analysis of lasing action in a surface plasmon distributed feedback laser. We find a lasing threshold and other characteristics of the surface plasmon laser. Our calculations demonstrate that for certain parameters the lasing threshold nonmonotonically varies with the losses in the optical cavity.</p>
17:15 - 17:30 - Broadband non-Foster-based Tunneling in Radiofrequency Regime Oral [Show abstract]
  • Silvio Hrabar, University of Zagreb, Croatia
  • Petar Kolar, University of Zagreb, Croatia
  • Igor Krois, University of Zagreb, Croatia
  • Josip Loncar, University of Zagreb, Croatia
This paper reports a simple experimental demonstrator for investigation of non-Foster-based tunneling in radio-frequency regime. Demonstrator is based on a TEM transmission line with blocking screen, aperture of which is loaded with negative capacitors. This system shows stable broadband tunneling within 1:7 bandwidth (200MHz – 1400 MHz).
17:30 - 17:45 - Theoretical Study on Stable Broadband Non-Foster Negative Capacitors Yielded by Parasitic Reactance of An Operational Amplifier Oral [Show abstract]
  • Yasushi Horii, Kansai University, Japan
This paper proposes a new method to design negative capacitors by utilizing a parasitic reactance of an operational amplifier. The proposed method can provide a stable broadband negative capacitance. From the circuit simulation, a negative capacitance from -304pF to -275pF is yielded from 37MHz to 100MHz.
17:45 - 18:00 - A Two-Port Digital Discrete-Time Non-Foster Circuit Designed for Negative Capacitance Oral [Show abstract]
  • Thomas Weldon, University of North Carolina at Charlotte, USA
  • John Covington, University of North Carolina at Charlotte, USA
  • Kathryn Smith, University of North Carolina at Charlotte, USA
  • Ryan Adams, University of North Carolina at Charlotte, USA
A digital discrete-time approach is presented for the design of two-port non-Foster circuits. This digital approach offers the potential for effective implementation of complex non-Foster circuits in applications such as wideband metamaterials, broadband impedance matching, and artificial magnetic conductors. A discrete-time implementation of a floating two-port negative capacitance is considered.
18:00 - 18:15 - A Digital Discrete-Time Non-Foster Approach to Broadband Fast-Wave Microstrip Lines Oral [Show abstract]
  • Thomas Weldon, University of North Carolina at Charlotte, USA
  • Ryan Adams, University of North Carolina at Charlotte, USA
The design of a fast-wave microstrip line is presented, where digital discrete-time non-Foster circuits replace analog negative capacitance circuits. In such fast-wave lines, non-Foster approaches can overcome dispersion and bandwidth limitations. The proposed digital non-Foster approach is shown to offer broadband fast-wave performance, even with limited quality factor.
18:15 - 18:30 - Active Metamaterial Absorber by Photoswitchable Molecules Oral [Show abstract]
  • Mehdi Keshavarz Hedayati, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
  • Mady Elbahri, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
Active or intelligent materials whose properties are governed by an external stimulus have been used for many application including memories, opto-electronic devices, smart windows, drug delivery, bio-analytics, and surgery, amongst others. Not only transition metal oxides, semiconductors, and smart polymers have been shown to be applicable as switchable materials, molecular switching elements attracted the attention for the same purposes, too. In particular, molecule–plasmon interacting systems are very promising alternative to replace traditionally used active compounds. Combination of great potential of photo-active molecules with astonishing capability of plasmonics could open up new way in smart materials. In a molecule–plasmon hybrid system, the plasmonic resonance peak can be adjusted (shifted, split, or its intensity can be tuned) through the externally induced changes in the molecule. Although this concept has been widely explored, the application oriented approach is still missing. Recently, we have demonstrated that combination of the absorbing character of the photo-switchable dye molecules and plasmon resonance allows realization of a novel type of optical system, wherein the optical transparency can be manipulated by illumination. Visibly irradiated polymer doped spirooxazine which covered the thin metal film shows high transparency (higher than the intrinsic transparency of bare metal film) while UV exposure of the samples immediately turn the sample opaque. High electrical conductivity of the metal film and molecular induced transmission enhancement of the film enables us to have a transparent conductive metal with controllable optical transparency (smart material). With the same strategy, we also have shown that an optically driven perfect absorber can be developed in a multilayer films with few 10th of nanometer thickness. In such system, the reflectivity (absorption) of the metal mirror could be dropped down (increased) to a few percent (100%) or recovered to more (less) than 95% (5%) dynamically by UV or visible illumination, respectively.
18:30 - 19:00 - Active Radiofrequency Metamaterial Structures – Pros, Cons and Future Trends Invited oral [Show abstract]
  • Silvio Hrabar, University of Zagreb, Croatia
This paper briefly reviews state of the art of gain-based and non-Foster-based active metamaterial structures with an emphasis on their underlying physical principles and pros and cons in real-world engineering applications. Several examples of new ideas based on bianostropic, non-reciprocal, and stable all-negative systems, are highlighted and discussed.
9 September 2015 / Start time: 9 h 0 min
09:00 - 10:00 - Plenary Session III
09:00 - Plenary Session III

Session chairperson(s): Martin Wegener

09:00 - 10:00 - Device Applications of Metafilms and Metasurfaces Plenary [Show abstract]
  • Mark Brongersma, Stanford University, USA
Many conventional optoelectronic devices consist of thin, stacked films of metals and semiconductors. In this presentation, I will demonstrate how one can improve the performance of such devices or obtain new functionalities by nano-patterning the constituent layers at length scales well below the wavelength of light.
10:00 - 10:30 - Coffee break
10:30 - 12:00 - Oral sessions (Wednesday morning)
10:30 - Plasmonics VII

Session chairperson(s): Olav Breinbjerg

10:30 - 11:00 - Lasing in Ordered, Quasiperiodic and Disordered Plasmonic Particle Lattices Invited oral [Show abstract]
  • Femius Koenderink, Center for Nanophotonics, FOM Institute AMOLF, Amsterdam, The Netherlands
  • Hinke Schokker, Center for Nanophotonics, FOM Institute AMOLF, Amsterdam, The Netherlands
<p> We present a study of lasing phenomena in geometries where feedback is provide by diffractive plasmonic particle lattices, and where a 2D polymer layer doped wit Rh6G provides gain and a 2D waveguiding environment. The strong feedback per particle makes this lasing system extremely robust to disorder. We study lasing upon removal and displacement of particles, as well as in quasiperiodic and aperiodic lattices.</p>
11:00 - 11:15 - Plasmon-Exciton Interaction Study Carried out on Elastomeric Template Covered with Gold Nanoparticles Decorated with Rhodamine-6g Oral [Show abstract]
  • Ugo Cataldi, Department of Physical-Chemistry University of Geneva, Switzerland
  • Alireza Rahimi Rashed, Department of Physics Case Western Reserve University, USA
  • Giuseppe Strangi, Department of Physics Case Western Reserve University, USA
  • Thomas Bürgi, Department of Physical-Chemistry University of Geneva, Switzerland
<p> A tunable plasmon-fluorescent elastic pad was realized using a Polydimethylsiloxane(PDMS) template covered with gold-nanoparticles(GNPs) and Rhodamine 6g. By increasing the size of particles, through chemical growth processes, and by applying mechanical strain, we found a red-shift of plasmon resonance, an increasing of fluorescence and Raman signal.</p>
11:15 - 11:30 - Transverse Anderson Localization In Dirac Point Bearing Nanostructures Oral [Show abstract]
  • Hanying Deng, Department of Physics and Astronomy, Shanghai Jiao Tong University, China
  • Fangwei Ye, Department of Physics and Astronomy, Shanghai Jiao Tong University, China
  • Xianfeng Chen, Department of Physics and Astronomy, Shanghai Jiao Tong University, China
  • Boris A. Malomed, Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Israel
  • Nicolae C. Panoiu, Department of Electronic and Electrical Engineering, University College London, UK
We demonstrate the robustness of Dirac points against structural disorder in one-dimensional photonic nanostructures, by showing that even very high levels of disorder are unable to localize the modes located near the Dirac points. Both mode analysis and direct beam propagation simulations have been used in our analysis.
11:30 - 11:45 - Optical and Magneto-Optical Spectral Peculiarities of 1D Magnetophotonic Crystal with Microresonator Magnetic Layer and Plasmonic Pattern Oral [Show abstract]
  • Nikolai Khokhlov, Russian Quantum Center, Russia
  • Alexander Shaposhnikov, Crimean Federal University, Russia
  • Vladimir Berzhansky, Crimean Federal University, Russia
  • Venu Gopal Achanta, Tata Institute of Fundamental Research, India
  • Anatoliy Zvezdin, Prokhorov General Physics Institute Russian Academy of Sciences, Russia
  • Vladimir Belotelov, Lomonosov Moscow State University, Russia
The resonant enhancement of magneto-optical effects in the case of hybrid plasmonic-waveguide modes excitation in magnetoplasmonic crystal with palsmonic patterns was experimentally demonstrate. The plasmonic pattern allows the excitation and additional field localization within nonmagnetic Bragg mirrors beside the rare-earth iron garnet microresonator layer. The Faraday effect increases by about 50% while the transverse magneto-optical Kerr effect demonstrates the several times enhancement with respect to the case of the bare magnetophotonic crystal. The angular dependences of the resonances’ spectral positions are in good agreement with the analytical equation for waveguide modes’ dispersion.
11:45 - 12:00 - Magnetooptical Surface Plasmon Resonance Sensor based on Dielectric Bragg Mirror With Metal Cover Oral [Show abstract]
  • Daria Ignatyeva, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Pavel Kapralov, Russian Quantum Center, Russia
  • Grigory Knyazev, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Andrey Kalish, Lomonosov Moscow State University, Faculty of Physics, Russia
  • Andrey Fraerman, Institute for Physics of Microstructures of the Russian Academy of Sciences, Russia
  • Sergey Sekatskii, École Polytechnique Fédérale de Lausanne, Institute of the Physics of Biological Systems, Switzerland
  • Vladimir Belotelov, Lomonosov Moscow State University, Faculty of Physics, Russia
We present a novel type of the surface plasmon resonance sensor that is based on the magnetophotonic plasmonic heterostructure. The sensitivity of such sensor is enhanced by several orders of magnitude due to the excitation of the ultralong-range propagating surface plasmon polaritons in specially designed 1D photonic crystal coated with a magnetic layer. The sensing process was experimentally demonstrated for different concentrations of ethanol vapors in air.
10:30 - Tunable metamaterials

Session chairperson(s): Paolo Burghignoli

10:30 - 10:45 - Electromagnetically Induced Transparency Controlled by Auxiliary Wave via Three-Wave Mixing Oral [Show abstract]
  • Toshihiro Nakanishi, Kyoto University, Japan
  • Masao Kitano, Kyoto University, Japan
We introduce a metamaterial for realizing true electromagnetically induced transparency (EIT) in analogy to atomic EIT effect. In the metamaterial, two resonant modes oscillating at different resonant frequencies are coupled through three-wave mixing in the presence of an auxiliary wave, and sharp transparency attributed to EIT effect is induced. We experimentally demonstrate the EIT effect using the metamaterial loaded with nonlinear capacitors in microwave region.
10:45 - 11:00 - Impedance Match Of A Superconducting Tunable Left-Handed Transmission Line For Manipulation With Microwaves Oral [Show abstract]
  • Sergey Shitov, National University for Science and Technology MISIS / Kotel'nikov Institute of Radio Engineering and Electronics, Russia
  • Eugenia Ovchinnikova, National University for Science and Technology MISIS, Russia
  • Susanne Butz, Physikalisches Institut, Karlsruhe Institute of Technology , Germany
  • Philipp Jung, Physikalisches Institut, Karlsruhe Institute of Technology , Germany
  • Valery Koshelets, Kotel'nikov Institute of Radio Engineering and Electronics, Russia
  • Lyudmila Filippenko, Kotel'nikov Institute of Radio Engineering and Electronics, Russia
  • Alexander Averkin, National University for Science and Technology MISIS, Russia
  • Alexey Usinov, Physikalisches Institut, Karlsruhe Institute of Technology / National University for Science and Technology MISIS, Germany / Russia
Superconducting tunable left-handed (LH) transmission lines can be manipulated by changing the phase of a microwave signal. The LH transmission line that we study is a chain of up to 20 planar cells containing Josephson junctions as fixed compact inductors and shunting SQUIDs as magnetically tunable inductors. Harmful effect of both standing waves and RF leak are being reduced using a high-ratio wideband impedance transformer from 50 Ohm to 5 Ohm within frequency range 6-12 GHz (return loss < 1.5 dB) integrated in the same chip. The possibility to tune the regime from left- to right-handed operation at fixed frequency is clearly demonstrated.
11:00 - 11:15 - Tailored Metamaterial Perfect Absorber Oral [Show abstract]
  • Mehdi Keshavarz Hedayati, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
  • Moheb Abdelaziz, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
  • Abdul Rauf Jamali, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
  • Mady Elbahri, University of Kiel, Faculty of Engineering, Nanochemistry and Nanoengineering, Germany
Complete absorption of light which has been recently demonstrated in metamaterials has drawn the attention of the scientists because of its potential application in harvesting energy and sensors. Controlling the absorption band-width, peak position and intensity are some of the essential factors in metamaterial absorbers. Although many reports showed the metamaterial with high absorption in broad range of spectrum, strong tuning the absorption band-width has been rarely shown. In this work, we show that using three component (Au, TiO2 and SiO2) nanocomposite deposited on an optically thick gold film through simultaneous sputtering, one can broaden the band-width and peak position to span UV up to NIR.
11:15 - 11:30 - Tunable Electrostriction In Metamaterials Oral [Show abstract]
  • Michael Smith, University of Sydney, Australia
  • Carol Martijn de Sterke, University of Sydney, Australia
  • Chris Poulton, University of Technology Sydney, Australia
  • Mikhail Lapine, University of Technology Sydney, Australia
  • Christian Wolff, University of Technology Sydney, Australia
  • Boris Kuhlmey, University of Sydney, Australia
We characterise the optical, mechanical and acoustic properties of a medium through a theoretical examination of the electrostriction constant of both conventional dielectric materials, metals, and composites. The objective is to investigate whether one can construct metamaterials which exhibit tuneable electromechanical properties, for the purpose of engineering enhanced stimulated Brillouin scattering (SBS).
11:30 - 12:00 - Transparent Conducting Oxides as Dynamic Materials at Telecom Wavelengths Invited oral [Show abstract]
  • Jongbum Kim, Purdue University, USA
  • Nathaniel Kinsey, Purdue University, USA
  • Clayton DeVault, Purdue University, USA
  • Aveek Dutta, Purdue University, USA
  • Marcello Ferrera, Heriot-Watt University, Scotland
  • Vladimir Shalaev, Purdue University, USA
  • Alexandra Boltasseva, Purdue University, USA
Transparent conducting oxides have received significant attention in recent years for their tunability. Here, we study the tunability in the static optical properties of TCO films and nanostructures, as well as their dynamic properties under optical pumping. Combined with their low-temperature and CMOS-compatible processing techniques, TCOs are shown to be key materials for future dynamic nanophotonic devices.
10:30 - Acoustic metamaterials III and Optical and IR metamaterials I

Session chairperson(s): Victor Gopar

10:30 - 10:45 - Acoustic Cloaks for Complex Backgrounds Media with Homogeneous Metamaterials Oral [Show abstract]
  • Jian Zhu, Xi'an Jiaotong University, China
  • Tianning Chen, Xi'an Jiaotong University, China
  • Qingxuan Liang, Xi'an Jiaotong University, China
  • Xiaopeng Wang, Xi'an Jiaotong University, China
  • Jie Xiong, Xi'an Jiaotong University, China
Through the transformation acoustics theory we derive the constitutive parameters of the arbitrary shapes cloaks working in complex media. And a unidirectional acoustic cloak for layered background is designed and realized with homogeneous metamaterials.
10:45 - 11:15 - Flexural Waves in Structured and Disordered Plates Invited oral [Show abstract]
  • Patrick Sebbah, CNRS, France
Thin plates engineering has recently raised strong interest as they offer the possibility to curve wave trajectories, cloak macroscopic objects, or focus flexural waves by negative refraction without a negative refractive index. Here we review our recent results and present several approaches to structure plates and control elastic wave propagation.
11:15 - 11:45 - Light Transport in Aperiodic Dielectric Metamaterials Invited oral [Show abstract]
  • Luca Dal Negro, Boston University, USA
  • Sandeep Inampudi, Boston University, USA
Using rigorous transfer matrix theory in combination with Wavelet Transform Modulus Maxima analysis of multifractal signals, we demonstrate all-dielectric metamaterial structures that exhibit photon transport properties widely tunable across a broad spectral range.
11:45 - 12:00 - Optical Helmholtz resonator for extreme light concentration Oral [Show abstract]
  • Paul Chevalier, ONERA, France
Inspired by the acoustic Helmholtz resonator, we propose a slit-box electromagnetic nanoantenna able to concentrate the energy into a deep subwavelength volume. This design gives birth to giant field intensity enhancement throughout the slit. The resonance itself exhibits unusual properties which could be of great interest for applications requiring extreme light concentration.
10:30 - Chiral Metamaterials I

Session chairperson(s): Dorota A. Pawlak

10:30 - 11:00 - Chiral Interactions of Light in Complex Potentials Invited oral [Show abstract]
  • Sunkyu Yu, Seoul National University, Korea (South)
  • Hyun Sung Park, Korean Advanced Institute of Science and Technology, Korea (South)
  • Xianji Piao, Seoul National University, Korea (South)
  • Bumki Min, Korean Advanced Institute of Science and Technology, Korea (South)
  • Jiho Hong, Seoul National University, Korea (South)
  • Namkyoo Park, Seoul National University, Korea (South)
We propose a new type of chiral optical interactions based on a low-dimensional polarization eigenstate. Directional coupling between different spin momentum of light leads to the convergence of polarization states to the singularity point. For its meta-material implementation, we use parity-time (PT) symmetric potentials in a polar meta-molecule platform to achieve the unidirectional energy transfer in polarization space.
11:00 - 11:15 - Chiral Phenomena In Toroidal Metamaterials Oral [Show abstract]
  • Tim Raybould, University of Southampton, United Kingdom
  • Vassili Fedotov, University of Southampton, United Kingdom
  • Nikitas Papasimakis, University of Southampton , United Kingdom
  • Ilya Kuprov, University of Southampton, United Kingdom
  • Ian Youngs, DSTL, United Kingdom
  • Wei Ting Chen, National Taiwan University, Taiwan
  • Din Ping Tsai, National Tiwan University, Taiwan
  • Nikolay Zheludev, University of Southampton, United Kingdom
We present the first observation of circular dichroism due to a combination of resonant toroidal dipole and electric quadrupole excitations in a toroidal metamaterial.
11:15 - 11:30 - Plasmonic Nature of Extreme Optical Chirality of Subwavelength Hole Arrays Oral [Show abstract]
  • Alexey Kondratov, A. V. Shubnikov Institute of Crystallography RAS, Russia
  • Maxim Gorkunov, A. V. Shubnikov Institute of Crystallography RAS, Russia
  • Radmir Gainutdinov, A. V. Shubnikov Institute of Crystallography RAS, Russia
  • Oleg Rogov, A. V. Shubnikov Institute of Crystallography RAS, Russia
We study optical properties of subwavelength arrays of 3D-chiral metal holes ex- hibiting extreme circular dichroism and optical activity. The nanoscale shape features resolved by atomic force microscopy were processed with the developed AFM-to-FDTD data pipeline for reconstruction, averaging and preparation of the hole shape for FDTD simulations. The simulation results point unambiguously at the chiral localized plasmon resonance as the cause of extreme optical chirality.
11:30 - 11:45 - Engineering Polarization Mutual Conversion in Bilayered Chiral Metamaterials Oral [Show abstract]
  • J. H. Shi, Harbin Engineering University, China
<p> A bilayered chiral metamaterial is proposed and experimentally demonstrated to exhibit polarization mutual conversion of linearly polarized electromagnetic waves. Simulated and measured results show that the polarization mutual conversion can be well engineered by structural parameters.</p>
12:00 - 13:30 - Lunch break (Wednesday)
13:30 - 15:00 - Oral sessions (Wednesday afternoon 1)
13:30 - Plasmonics VIII

Session chairperson(s): Patrick Sebbah

13:30 - 13:45 - Data Transmission in Long-Range Dielectric-Loaded Surface Plasmon Polariton Waveguides Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
  • Svyatoslav Kharitonov, FSU Jena, Germany
  • Roman Kiselev, FSU Jena, Germany
  • Ashwani Kumar, University of Southern Denmark, Denmark
  • Ivan Fernández de Jáuregui Ruiz, FSU Jena, Germany
  • Xueliang Shi, University of Southern Denmark, Denmark
  • Kristján Léosson, University of Iceland, Iceland
  • Thomas Pertsch, FSU Jena, Germany
  • Stefan Nolte, FSU Jena, Germany
  • Sergey Bozhevolnyi, FSU Jena, Germany
<p> We demonstrate the data transmission of 10 Gbit/s NRZ optical signal through a long-range dielectric-loaded surface plasmon polariton waveguide. The BER penalties do not exceed 0.6 dB at few mW of received optical power.</p>
13:45 - 14:00 - Resonance Scattering of Electromagnetic Vortex Bessel Beams by an Artificial Gyrotropic Cylinder Oral [Show abstract]
  • Vasiliy Es'kin, University of Nizhny Novgorod, Russia
  • Alexander Kudrin, University of Nizhny Novgorod, Russia
We study scattering of H- and E-polarized electromagnetic vortex Bessel beams in the infrared range by a gyrotropic cylinder constituted from graphene-sandwiched dielectric disks and located in free space in the case where the symmetry axes of the beam and the cylinder coincide. Significant enhancement of the beam scattering is found to occur if the topological charge and frequency of the vortex Bessel beam are equal to the azimuthal index and frequency of the cylinder multipole resonance, respectively.
14:00 - 14:30 - Bottom-up Approach To Metamaterials And Plasmonic Materials Invited oral [Show abstract]
  • D. A. Pawlak, Institute of Electronic Materials Technology, Poland
  • K. Sadecka, Institute of Electronic Materials Technology, Poland
  • P. Osewski, Institute of Electronic Materials Technology, Poland
  • M. Gajc, Institute of Electronic Materials Technology, Poland
  • K. Korzeb, Institute of Electronic Materials Technology, Poland
  • A. Kłos, Institute of Electronic Materials Technology, Poland
  • E. Petronijevic, Sapienza Università di Roma, Italy
  • A. Belardini, Sapienza Università di Roma, Italy
  • G. Leahu, Sapienza Università di Roma, Italy
  • C. Sibilia, Sapienza Università di Roma, Italy
We report on developments in fabricating nano and micro-structured volumetric plasmonic materials and metamaterials utilizing crystal growth techniques as the micro-pulling down method. Materials developed by directional solidification of eutectic composites and directional solidification of dielectrics nonchemically doped with functional nanoparticles.
14:30 - 15:00 - Plasmonic Color Printing Invited oral [Show abstract]
  • Joel Yang, Singapore University of Technology and Design, Singapore
We discuss our recent work on color printing using metal nanostructures in Au, Ag, and Al. Strategies to achieve color mixing and 3D stereograms with this new method of structural color will be presented.
13:30 - Metasurfaces IV

Session chairperson(s): Femius Koenderink

13:30 - 14:00 - Bianisotropic Metasurfaces Invited oral [Show abstract]
  • Anthony Grbic, University of Michigan, USA
  • Carl Pfeiffer, University of Michigan, USA
A systematic procedure for designing bianisotropic metasurfaces is outlined, and a pragmatic approach to realizing them using cascaded anisotropic electric sheets (patterned metallic surfaces) is presented.
14:00 - 14:15 - Elliptical Metasurface Cloaks in Printed Technology – Reduction of Mutual Coupling in Closely Spaced Planar Antennas Oral [Show abstract]
  • Hossein M. Bernety, University of Mississippi, Department of Electrical Engineering, USA
  • Raviteja Chinnambeti, University of Mississippi, Department of Electrical Engineering, USA
  • Alexander B. Yakovlev, University of Mississippi, Department of Electrical Engineering, USA
In this paper, we propose a novel approach based on the mantle cloaking method to reduce the mutual coupling between closely spaced planar antennas. We consider two microstrip-fed monopole antennas resonating at slightly different frequencies and show that by covering each antenna with a conformal elliptical metasurface formed by conformal and confocal printed arrays of sub-wavelength periodic elements partially embedded in the substrate, the antennas become invisible to each other and their radiation patterns are restored as if they were isolated.
14:15 - 14:30 - "Transistor" Metasurface Oral [Show abstract]
  • Karim Achouri, Ecole Polytechnique Montréal, Canada
  • Mohamed Salem, Ecole Polytechnique Montréal, Canada
  • Christophe Caloz, Ecole Polytechnique Montréal, Canada
<p> We propose to synthesize a parametric metasurface whose transmission properties are modified by illuminating a control electromagnetic wave on the structure, in the same way the channel conductance of a transistor is controlled by a gate signal. We present a general solution of the problem that yields analytical expressions for the synthesized metasurface susceptibilities. It turns out that such a problem generally violates reciprocity conditions, indicating the necessity of nonreciprocal elements. Nevertheless, we propose here a reciprocal parametric metasurface based on the destructive interference of transmitted waves corresponding to the initial signal wave and the control wave, respectively, at the cost of parasitic reflected and transmitted fields.</p>
14:30 - 14:45 - Visible-frequency Metasurfaces For Broadband Anomalous Reflection And High-efficiency Spectrum Splitting Oral [Show abstract]
  • Zhongyang Li, Northwestern University, USA
  • Edgar Palacios, Northwestern University, USA
  • Serkan Butun, Northwestern University, USA
  • Koray Aydin, Northwestern University, USA
We propose a highly-efficient yet simple metasurface design comprising of a single, anisotropic trapezoid-shape antenna in its unit cell, which could achieve broadband (450 - 850 nm) anomalous reflection and spectrum splitting at visible and near-IR frequencies with high conversion efficiency. Such beam splitting has been experimentally visualized using a CCD camera and free space, angle-resolved measurement setup.
14:45 - 15:00 - Controlling the Cross-Polarization Effects of Metasurfaces from the Lowest to the Highest Possible Value Oral [Show abstract]
  • Juan D. Baena, Universidad Nacional de Colombia, Colombia
  • Laura M. Pulido-Mancera, Duke University, USA
<p> It is demonstrated that cross-polarization effects for metasurfaces can be fully controlled by rotating the metasurface or equivalently the polarization state. It is possible to remove the cross-polar coefficients. Also, it is possible to find the orientation for which the cross-polar coefficient takes the maximum value.</p>
13:30 - Metamaterials for Antennas I

Session chairperson(s): Alessio Monti

13:30 - 13:45 - Modeling Of Beam Steering From A Phase-Gradient Metasurface Oral [Show abstract]
  • Walid Adel Merzouk, IEF, Univ. Paris-Sud, CNRS, UMR 8622, France
  • Badreddine Ratni, Institut d'Electronique Fondamentale, France
  • Shah Nawaz Burokur, Institut d'Electronique Fondamentale, France
  • André de Lustrac, Institut d'Electronique Fondamentale, France
It has been recently shown that a metasurface presenting a phase-gradient can be effectively used as a partially reflecting surface (PRS) in a Fabry-Perot leaky wave antenna to produce beam steering. The aim of the present contribution is to develop and present an analytical model which will allow us to predict the angle of deflection.
13:45 - 14:00 - Retrieval of Electric and Magnetic Coupling Coefficients Oral [Show abstract]
  • Pavel Petrov, Magnetism department, faculty of Physics, M.V.Lomonosov Moscow State University, Russia
  • Anna Radkovskaya, M.V.Lomonosov Moscow State University, Faculty of Physics, Magnetism Department, Russia
  • Ekaterina Shamonina, University of Oxford, Department of Engineering Science, UK
We propose a novel method for a direct retrieval of electric and magnetic coupling coefficients in metamaterials with an arbitrary type of inter-element coupling. The proposed technique employs a transformation of the frequency dependence of complex current amplitudes in interacting meta-atoms, enabling separate deduction of the magnetic and electric coupling coefficients. The method is verified on a number of examples using both experimental and simulation data in a wide frequency range from MHz to THz. Our approach is valid for elements of arbitrary shape and should be useful for design of metamaterial structures that employ slow waves of inter-element coupling for manipulation of the near field.
14:00 - 14:15 - ‘Poynting Vector Optics’ for Superdirective Dimer Oral [Show abstract]
  • Lianbo Li, University of Oxford, United Kingdom
  • Ekaterina Shamonina, University of Oxford, United Kingdom
  • Chris Stevens, University of Oxford, United Kingdom
  • Laszlo Solymar, Imperial College London, United Kingdom
Analysis of instantaneous and time-average Poynting vector produced by a dimer of coupled meta-atoms is performed with the aim of providing insights into the formation of superdirective radiation by metamaterials. Visualisation of the superdirectivity is further supported by studies of the shape of causal surfaces separating the reactive and radiated power and their space-time diagrams.
14:15 - 14:30 - Power-Selectivity Horn Filtenna Loaded with a Nonlinear SRR Oral [Show abstract]
  • Mirko Barbuto, "Niccolò Cusano" University, Italy
  • Filiberto Bilotti, "Roma Tre" University, Italy
  • Alessandro Toscano, "Roma Tre" University, Italy
In this contribution, we present the design of a power-selectivity horn filtenna based on the use of a nonlinear Split Ring Resonator (SRR). In particular, in order to obtain a nonlinear behavior of the SRR, we load its external gap with a pair of Schottky diodes, which require a not negligible power level to be activated. Inserting the resulting nonlinear resonator inside the throat of a horn antenna, we show that both matching and radiating properties exhibit or do not exhibit a notched-band, depending on the operating power level.
14:30 - 15:00 - Miniaturized Metamaterial-inspired Antennas Invited oral [Show abstract]
  • Richard Ziolkowski, University of Arizona, USA
The juxtaposition of materials having positive and negative effective properties allows the attainment of electrically small resonators. It has been demonstrated that these miniaturized resonators, as near-field resonant parasitic (NFRP) elements, facilitate the realization of electrically small radiators (antennas) and scatterers. A variety of metamaterial-inspired NFRP configurations from microwave to optical wavelengths will be used to illustrate the associated design concepts and their advantages in practical applications.
13:30 - Analytical Modelling I

Session chairperson(s): Luca Dal Negro

13:30 - 14:00 - Analytical Model for Fishnet Structures: A Systematic Circuit Approach Extended oral [Show abstract]
  • Victor Torres, Universidad Publica de Navarra, Spain
  • Francisco Mesa, University of Sevilla, Spain
  • Miguel Navarro-Cia, Imperial College of London, United Kingdom
  • Raul Rodriguez-Berral, University of Sevilla, Spain
  • Miguel Beruete, Universidad Publica de Navarra, Spain
  • Francisco Medina, University of Sevilla, Spain
Fishnet structures provide a popular procedure to obtain negative-refraction-index artificial media. They are basically stacked extraordinary-transmission structures that are closely spaced. Thus these structures can be built by combinig two or more metallic plates with a 2D periodic distribution of small apertures. Analytical models based on equivalent circuits are almost trivially obtained when the electric separation between metal plates is relatively large. However the more interesting situation arising from tightly coupled screens is more involved and only heuristic equivelent-circuit approaches have been reported in the literature. In this contribution a systematic approach to obtain a general circuit model for this kind of structures is developed.
14:00 - 14:15 - Algorithm For Bianisotropic Metafilm Design Problem Oral [Show abstract]
  • Zhanna Dombrovskaya, Faculty of Physics, M.V. Lomonosov Moscow State University, Russia
In this paper, an algorithm that allows to design bianisotropic metafilms with given spectral properties is proposed. It is based on the analytical approach and can be easily integrated with natural experiment. Using the algorithm, it is possible to account for statistical straggling of the constituent meta-atoms' geometric parameters.
14:15 - 14:30 - Light Reflection and Transmission on the Finite-Thickness Slab of Hyperbolic Medium with Losses and Gain and the Threshold Conditions for Generation Oral [Show abstract]
  • Olga Kozina, Kotel’nikov Institute of Radio-Engineering and Electronics of Russian Academy of Science, Russia
  • Leonid Melnikov, Yuri Gagarin State Technical University of Saratov, Russia
  • Igor Nefedov, Aalto University, School of Electrical Engineering, Finland
The reflection/transmission coefficients are calculated for the hyperbolic metamaterial slab are calculated using the 4x4 Berreman matrix method for arbitrary orientation of optical axis according to slab boundary. Gain or losses in the medium are described as imaginery parts of the components of dielectric tensor of the medium. The threshold conditions for gain and radiation angle were calculated for given losses and axis orientation.
14:30 - 14:45 - Boundary Conditions for Electric Quadrupolar Continua Derived from Maxwell s Differential Equations Oral [Show abstract]
  • Arthur Yaghjian, Electromagnetics, USA
Maxwell's differential equations are used to find a set of three boundary conditions for the interface between free space and an electric quadrupolar continua satisfying a physically reasonable constitutive relation which allows both a propagating and evanescent wave in the continuum (thereby requiring three boundary conditions to determine a unique solution for an incident plane wave).
14:45 - 15:00 - Making Metals Transparent: A Circuit Model Approach Oral [Show abstract]
  • Carlos Molero, Universidad de Sevilla, Spain
  • Francisco Medina, Universidad de Sevilla, Spain
  • Raul Rodriguez-Berral, Universidad de Sevilla, Spain
  • Francisco Mesa, Universidad de Sevilla, Spain
Solid metal films are opaque over the whole frequency spectrum due to the high density of free electrons. Even at microwave frequencies, thin metal layers with thicknesses well below skin depth reflects most of the impinging electromagnetic energy. However drastical enhancement of the transparency has been reported using resonance phenomena within a narrow frequency band. This contribution provides an analytical circuit model that explains the recently reported strong transmission in terms of relatively simple circuit theory grounds.
15:00 - 15:30 - Coffee break
15:30 - 16:45 - Oral sessions (Wednesday afternoon 2)
15:30 - Nonlinear Metamaterials

Session chairperson(s): Anthony Grbic

15:30 - 15:45 - All-Optical Switching of Photonic Metamaterials Enabled by Surface-Mediated Phase Transitions in Gallium Oral [Show abstract]
  • Robin Waters, University of Southampton, United Kingdom
  • Kevin MacDonald, University of Southampton, United Kingdom
  • Peter Hobson, QinetiQ Ltd., United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
Reversible, optically-induced surface metallization in a nanoscale layer of elemental gallium forming the backplane of a photonic metamaterial absorber provides a mechanism for a strong, resonantly enhanced reflective optical nonlinearity at μW/μm^2 intensities.
15:45 - 16:00 - Multiple Surface-lattice Resonances in Second-harmonic Generation from Metasurfaces Oral [Show abstract]
  • Martti Kauranen, Tampere University of Technology, Finland
  • Robert Czaplicki, Tampere University of Technology, Finland
  • Jouni Mäkitalo, Tampere University of Technology, Finland
  • Janne Laukkanen, University of Eastern Finland, Finland
  • Joonas Lehtolahti, University of Eastern Finland, Finland
  • Markku Kuittinen, University of Eastern Finland, Finland
We investigate second-harmonic generation from arrays of metal nanoparticles as a function of the incident angle of light into the structure. The generated signal is significantly affected by the surface-lattice resonances of the structure.
16:00 - 16:15 - Changing An Elastic Instability By The Use of Metamaterials Oral [Show abstract]
  • Luuk Lubbers, Leiden University, Netherlands
  • Corentin Coulais, Leiden University, Netherlands
  • Bas Overvelde, Harvard University, U.S.A.
  • Katia Bertoldi, Harvard University, U.S.A.
  • Martin van Hecke, Leiden University, Netherlands
Buckling of beams under uniaxial loading is perhaps the most basic example of an elastic instability. Its textbook explanation rests on Euler's elastica, which describes the bending of elastic lines. In this talk we show by means of experiments, simulations and theory that sufficiently wide beams exhibit discontinuous buckling, an unstable form of buckling where the post-buckling stiffness is negative. In particular, we will identify nonlinearity as the main cause for negative stiffness. We develop a 1D model which generalizes Euler's elastica to account for nonlinearities, and show that it matches our experimental and numerical data. Inspired by the central role of nonlinearities in this model, we then utilize this non-linearity to create metamaterials that allow us to rationally design the negative post-buckling stiffness of metabeams, independently of beam thickness. We will show that metabeams, beams that are formed by patterns of elliptic holes, can exhibit strong nonlinearity. We demonstrate that for sufficiently strong nonlinearity, we observe discontinuous buckling for metabeams as slender as 1\% numerically and 5\% experimentally. This makes it possible to violate Eulers limit for slender beam buckling.
16:15 - 16:30 - Hysteresis Behaviour and Narrowband Resonances in Chains of Active Nonlinear Nanoresonator Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
  • Sergey Fedorov, ITMO, St.-Petersburg , Russia
  • Nikolai Rosanov, ITMO, St.-Petersburg , Russia
<p> We propose to use hysteresis in a 1D system of active nonlinear nanoresonators to achieve the Narrowband Resonances. Combination of Wood anomaly, retardation, and nonlinearity provides platform for light nanosources and highly sensitive sensors.</p>
16:30 - 16:45 - Controlling Light with Light in Nano-Opto-Mechanical Metamaterial Oral [Show abstract]
  • Jun-Yu Ou, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom
  • Eric Plum, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom
  • Nikolay I. Zheludev, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom
We demonstrate nano-opto-mechanical metamaterial with a cubic optical nonlinearity that is seven orders of magnitude greater than the reference nonlinearity of GaAs. The nonlinearity is driven by light-induced deformation of the plasmonic nanostructure.
15:30 - Metasurfaces V

Session chairperson(s): Namkyoo Park

15:30 - 16:00 - Controlling Guided Waves in Optical Waveguides Using One Dimensional Phased Antenna Arrays Withdrawn [Show abstract]
  • Nanfang Yu, Columbia University, USA
  • Zhaoyi Li, Columbia University, USA
  • Myoung-Hwan Kim, Columbia University, USA
We demonstrate a few novel small-footprint and broadband integrated photonic devices based on optical waveguides patterned with phased antenna arrays. These devices include waveguide mode converters, polarization rotators, perfect absorbers, and optical power diode.
16:00 - 16:15 - Fano-resonant All-Dielectric Metasurfaces Oral [Show abstract]
  • Jason Valentine, Vanderbilt University, USA
  • Yuanmu Yang, Vanderbilt University, USA
  • Ivan Kravchenko, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, USA
  • Dayrl Briggs, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, USA
We present an experimentally demonstration of an all-dielectric silicon-based metasurface that possess a sharp Fano-resonance. Due to extremely low absorption loss and coherent interaction of neighboring meta-atoms, a Q-factor of 483 is observed. We also show that the metasurface can be utilized for significantly enhancing nonlinear conversion.
16:15 - 16:30 - Self-Complementary Zig-Zag Metasurfaces for Designing Circular Polarizing Beam Splitters Oral [Show abstract]
  • Juan D. Baena, Universidad Nacional de Colombia, Colombia
  • Juan P. del Risco, Universidad Nacional de Colombia, Colombia
  • Alexey P. Slobozhanyuk, ITMO University, Russia
  • Stanislav B. Glybovski, ITMO University, Russia
  • Pavel A. Belov, ITMO University, Russia
<p> It is demonstrated that self-complementary zig-zag screens can be used for designing circular polarizing beam splitters. Although there is only an exact frequency at which the aspect ratio is 0dB, it is shown that the relative bandwidth for deviations within ±3dB can be as big as 68%. Besides the periodicity is deeply subwavelength what reduce the diffraction.</p>
16:30 - 16:45 - Multi and Broad Band Light Spectrum-Engineering with Metasurfaces Oral [Show abstract]
  • Jierong Cheng, Northeastern University, USA
  • Mohsen Farmahini-Farahani, Qualcomm Research Center, USA
  • Babak Memarzadeh, Geophysical Survey Systems Inc., USA
  • Hossein Mosallaei, Northeastern University, USA
Metasurfaces for realization of L-C circuit elements are presented. Novel combinations will engineer light spectrum to interest, to have multi, broad, or dispersion-less frequency spectra. Three unique designs are investigated, a diplexer from patterned surfaces, a wideband nanofilter where the frequency band is desirably controlled, and a dispersion-less metasurface
15:30 - Metamaterials for Antennas II

Session chairperson(s): Joel Yang

15:30 - 16:00 - Metamaterial Antennas Invited oral [Show abstract]
  • Olav Breinbjerg, Technical University of Denmark, Denmark
The Thomson Reuters Web of ScienceTM lists more than 1500 journal articles related to metamaterial antennas from 2001 to 2015; this paper overviews some major objectives of such antennas.
16:00 - 16:30 - Metasurface 2D Leaky-Wave Antennas Invited oral [Show abstract]
  • Paolo Burghignoli, Sapienza University of Rome, Italy
  • Paolo Baccarelli, Sapienza University of Rome, Italy
  • Davide Comite, Sapienza University of Rome, Italy
  • David Di Ruscio, Sapienza University of Rome, Italy
  • Walter Fuscaldo, Sapienza University of Rome & IETR, France, Italy
  • Alessandro Galli, Sapienza University of Rome, Italy
  • Giampiero Lovat, Sapienza University of Rome, Italy
Metasurface 2D leaky-wave antennas exhibiting rotationally invariant electromagnetic features. Moving from structures based on metal strip gratings, the talk will address planar structures that include omnidirectional homogenized metasurfaces, considering in particular antennas based on metal patterned screens, possibly loaded with additional wire-medium layers, and on electrostatically biased graphene sheets.
16:30 - 16:45 - Embroidered Partially Reflective Surface (PRS) Antenna Oral [Show abstract]
  • Sofian Hamid, Institute of High Frequency Technology RWTH Aachen, Germany
  • Hammam Shakhtour, Institute of High Frequency Technology RWTH Aachen, Germany
  • Dirk Heberling, Institute of High Frequency Technology RWTH Aachen, Germany
  • Meike Reifenrath, Institut für Textiltechnik RWTH Aachen, Germany
  • Melanie Hoerr, Institut für Textiltechnik RWTH Aachen, Germany
  • Thomas Gries, Institut für Textiltechnik RWTH Aachen, Germany
  • Stefan Jockenhoevel, Institut für Textiltechnik RWTH Aachen, Germany
The design of a higher gain embroidered antenna using the resonant cavity concept is presented. The patch as the main radiator and the partially reflective surface (PRS) structure as the superstrate are realized using an industrial embroidery machine. The PRS consists of periodic cross-slots (9 x 9 unit cells) in order to have a durable embroidered structure. The ground plane is made of a conductive woven fabric. The fabricated antenna has a relatively broad 1 dB-gain-bandwidth (10%) and a directive pattern (3 dB beam-width of 40° at the center frequency). Despite the higher losses in the conductive thread due to the resonant cavity effect, this antenna has a maximum realized gain of 6.8 dBi, which is typically 3 to 6 dB more than other embroidered single patch antennas.
15:30 - Metamaterials absorbers and thermal metamaterials

Session chairperson(s): Richard Ziolkowski

15:30 - 16:00 - Micro-Gap Thermophotovoltaic Generator Enhanced by Wire Metamaterial Extended oral [Show abstract]
  • Constantin Simovski, Aalto University, Finland
  • Mohammad-Sajjad Mirmoosa, Aalto University, Finland
We introduce new microgap thermophotovoltaic systems enhanced by tungsten nanowires and allowing the optimized super-Planckian spectrum of radiative heat transfer for electricity generation. We perform a system analysis of these systems.
16:00 - 16:15 - Spectral Emissivity Engineering With Plasmonic Nano-Antennas Oral [Show abstract]
  • Mathilde Makhsiyan, ONERA - The French Aerospace Lab, France
  • Patrick Bouchon, ONERA - The French Aerospace Lab, France
  • Julien Jaeck, ONERA - The French Aerospace Lab, France
  • Fabrice Pardo, Laboratoire de Photonique et de Nanostructures (LPN-CNRS), France
  • Jean-Luc Pelouard, Laboratoire de Photonique et de Nanostructures (LPN-CNRS), France
  • Riad Haïdar, ONERA - The French Aerospace Lab, France
We demonstrate experimentally that plasmonic nanoantennas made of metal-insulator-metal patches can be used to tailor the spectral emissivity of a gold surface in the infrared. Several areas of a gold mirror sample were covered with various geometries of nanoantennas. Their emissivity was characterized thanks to a dedicated bench, based on the combination of a Fourier transform spectrometer and an infrared camera. A polarized monochromatic emission, tunable depending on the geometry of the patch, is obtained, which is coherent with the theoretical predictions.
16:15 - 16:30 - Blacker than Ideally Black: Double Negative Conjugately Matched Cylinders Oral [Show abstract]
  • Joni Vehmas, Aalto University, Finland
  • Costas Valagiannopoulos, Aalto University, Finland
  • Sergei Tretyakov, Aalto University, Finland
  • Stanislav Maslovski, University of Coimbra , Portugal
<p> Using uniaxial double negative metamaterials it is possible to create bodies which optimally absorb power from all spatial harmonics of the incident fields, both propagating and evanescent. Comparing with the ideal black bodies these new objects appear ``infinitely more black''. The concept is illustrated by considering infinite absorptive cylinders.</p>
16:30 - 16:45 - 100 THz Broadband and Single Photon Optical Switching with a Plasmonic Metamaterial Oral [Show abstract]
  • Venkatram Nalla, Nanyang Technological University, Singapore
  • Stefano Vezzoli, Nanyang Technological University, Singapore
  • Charles M. X. Altuzarra, Nanyang Technological University, Singapore
  • Eliot Bolduc, Heriot-Watt University, Edinburgh, UK
  • João Valente, University of Southampton, UK
  • Julius J. F. Heitz, Heriot-Watt University, Edinburgh, UK
  • John Jeffers, Department of Physics, University of Strathclyde, Glasgow, UK
  • Jonathan Leach, Heriot-Watt University, Edinburgh, UK
  • Thomas Roger, Heriot-Watt University, Edinburgh, UK
  • Christophe Couteau, Heriot-Watt University, Edinburgh, UK
  • Sun Handong, Nanyang Technological University, Singapore
  • Cesare Soci, CDPT, Nanyang Technological University, Singapore
  • Daniele Faccio, Heriot-Watt University, Edinburgh, UK
  • Nikolay Zheludev, Nanyang Technological University, Singapore
<p> All-optical processing of signals is one key milestone that needs to be achieved for eliminating the disadvantages of optical–electrical–optical conversion, thus moving towards terabits per second communications, high-performance computing and signal processing. All-optical modulation means control of the phase or intensity of one light beam by another. Here we demonstrate a sub-wavelength plasmonic metamaterial performing as an ultrafast, broadband and energy efficient (single photon) all-optical switch.</p>
10 September 2015 / Start time: 9 h 0 min
09:00 - 10:00 - Oral session (Thursday morning 1)
09:00 - Non-reciprocal Metamaterials

Session chairperson(s): Martti Kauranen

09:00 - 09:30 - Breaking Time-Reversal Symmetry In Microwave Metamaterials With Nonreciprocal Surface Waves Invited oral [Show abstract]
  • Aloyse Degiron, Institut d'Electronique Fondamentale, Univ. Paris-Sud and CNRS, France
  • David R. Smith, Duke University, Center for Metamaterials and Integrated Plasmonics, USA
We show that the nonreciprocal surface waves supported by biased ferrites at microwave frequencies can be harnessed to develop metamaterials that break time-reversal symmetry. We illustrate these ideas by designing a metamaterial one-way glass in the S band of the electromagnetic spectrum.
09:30 - 10:00 - Recent Advances on Non-Reciprocal Light Manipulation from Dynamic Modulation Invited oral [Show abstract]
  • Shanhui Fan, Stanford University, USA
<p> We discuss some of our recent works in understanding optical reciprocity without the use of magneto-optics. A key objective for optical non-reciprocal device is to provide optical isolation. We show that a large class of nonlinear optical isolators in fact is constraint by a dynamic reciprocity, and therefore cannot provide complete optical isolation. We also discuss topological effects in dynamic-modulation-induced optical non-reciprocity.</p>
09:00 - Hyperbolic Metamaterials I

Session chairperson(s): Emmanuel Centeno

09:00 - 09:15 - Low-Scattering Hyperbolic Metamaterial Nanotube Oral [Show abstract]
  • Kyoung-Ho Kim, Department of Physics, Korea University, Korea (South)
  • You-Shin No, Department of Physics, Korea University, Korea (South)
  • Sehwan Chang, Department of Physics, Korea University, Korea (South)
  • Jae-Hyuck Choi, Department of Physics, Korea University, Korea (South)
  • Hong-Gyu Park, Department of Physics, Korea University, Korea (South)
We propose a low scattering metal/dielectric layered nanotube of which size is comparable to incident wavelength. The analysis of light scattering shows that the layered nanotube can be described as a radial anisotropic hyperbolic metamaterial. In addition, we show that the low scattering of the layered nanotube occurs when the effective permittivity in the angular direction is nearly zero. The results will be useful for designing invisible nanotube applications.
09:15 - 09:30 - Levitating Forces on Polarized Particles Near Anisotropic Metamaterials Oral [Show abstract]
  • Francisco J. Rodríguez-Fortuño, King's College London, United Kingdom
  • Anatoly V. Zayats, King's College London, United Kingdom
A particle scattering in close proximity to an anisotropic substrate can experience a repulsive force if one of the diagonal components of the permittivity tensor is close to zero. We derive a condition for this repulsive force and show its broad bandwidth for realistic metamaterial substrates, including those based on graphene multilayers.
09:30 - 10:00 - Topological Transitions in Photonic Hypercrystals. Extended oral [Show abstract]
  • Evgenii Narimanov, Purdue University, USA
Photonic hypercrystals represent a new class of artificial optical composites, that has the properties of both the metamaterials and the photonic crystals, as well as some new features not found in these media. In particular, the hypercrystals support an even number of Dirac dispersion cones that originate from the Motti topological transition. The resulting singularity in the photonic density of states has a strong effect on the emissivity of the hypercrystal.
09:00 - Fundamentals of Metamaterials

Session chairperson(s): Andrea Di Falco

09:00 - 09:30 - Physical Bounds on Metamaterials Invited oral [Show abstract]
  • Mats Gustafsson, Lund University, Sweden
<p> Passivity is used to derive physical bounds on metamaterial devices. The bounds are determined from sum rules or optimization problems involving the stored energy. They typically relate some product between the performance and the bandwidth. The sum rules are computed from the low and/or high frequency response of the system. The corresponding stored energy is determined from a state space representation of the passive system. An overview of physical bounds for metamaterial applications such as scattering, antennas, absorbers, high impedance surfaces, and extra ordinary transmission is presented.</p>
09:30 - 10:00 - Mechanical Metamaterials Invited oral [Show abstract]
  • Graeme W. Milton, University of Utah, USA
Put your abstract here
09:00 - Superconducting Metamaterials

Session chairperson(s): Jianwen Dong

09:00 - 09:15 - Effects of Lasing in a One-Dimensional Quantum Metamaterial Oral [Show abstract]
  • Hidehiro Asai, National Institute of Advanced Industrial Science and Technology, Japan
  • Sergey Savel'ev, Loughborough University, United Kingdom
  • Shiro Kawabata, National Institute of Advanced Industrial Science and Technology, Japan
  • Alexandre Zagoskin, Loughborough University, United Kingdom
Electromagnetic pulse propagation in a quantum metamaterial - artificial, globally quantum coherent optical medium - is numerically simulated. We show that a one-dimensional quantum metamaterial based on superconducting quantum bits, initialized in an easily reachable factorized excited state, demonstrates lasing in microwave range, accompanied by the chaotization of qubit states and generation of higher harmonics. These effects may provide a tool for characterization and optimization of quantum metamaterial prototypes.
Media link(s):

See http://arxiv.org/abs/1412.4464

09:15 - 09:30 - The Fabrication of Superconducting Composites for Microwave Applications Oral [Show abstract]
  • Juliana Mohd Janurudin, University of Oxford, United Kingdom
  • Flynn Castles, University of Oxford, United Kingdom
  • Dmitry Isakov, University of Oxford, United Kingdom
  • Chris Stevens, University of Oxford, United
  • Susannah Speller, University of Oxford, United Kingdom
  • Chris Grovenor, University of Oxford, United Kingdom
Superconductor/polymer composites can offer specific functionalities in metamaterial devices by taking advantage of unique electromagnetic properties. Methodologies have been developed for fabricating superconducting/polymer composites by casting and 3D printing. Permittivity and permeability values at 298K and 77K have been correlated with the homogeneity and density of YBCO distributions in the polymer.
09:30 - 09:45 - Optical Superconducting Plasmonic Metamaterial Oral [Show abstract]
  • Kaveh Delfanazari, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom
  • Vassili Savinov, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, United Kingdom
  • Otto Muskens, Physics and Astronomy, University of Southampton, , United Kingdom
  • Nikolay Zheludev, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, UK. Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore., United Kingdom,
We report on the discovery of a new type of optical plasmonic media: by observing absorption lines in a superconducting metamaterial out of Nb, we find that the Nb metamaterial shows plasmonic properties at visible wavelengths. This suggests that superconductors are a feasible platform for new generation of plasmonic metadevices.
09:45 - 10:00 - Tunable Broadband Transparency in Macroscopic Quantum SQUID Metamaterials Withdrawn [Show abstract]
  • Steven Anlage, University of Maryland, USA
  • Daimeng Zhang, University of Maryland, USA
  • Melissa Trepanier, University of Maryland, USA
  • Oleg Mukhanov, Hypres, Inc., USA
Metamaterials made up of Radio Frequency (RF) Superconducting Quantum Interference Devices (SQUIDs) can display strongly nonlinear behavior over a range of parameters, including dc flux and rf power. We have discovered that coupled arrays of rf SQUIDs have self-induced broadband transparency due to a qualitatively novel nonlinear mechanism.
10:00 - 10:30 - Coffee break
10:30 - 12:00 - Oral session (Thursday morning 2)
10:30 - Nanocircuits and Nanoantennas

Session chairperson(s): Aloyse Degiron

10:30 - 11:00 - Nanoantennas with a Tunable Response: Single Particle and Array Properties Invited oral [Show abstract]
  • Carsten Rockstuhl, Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology, Germany
  • Rasoul Alaee, Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology, Germany
  • Mohammad Albooyeh, Department of Radio Science and Engineering, SMARAD Centre of Excellence, Aalto University, Espoo, Finland, Finland
  • Robert Filter, Friedrich-Schiller-University Jena, Germany
  • Dennis Lehr, Friedrich-Schiller-University Jena, Germany
  • Constantin Simovski, Department of Radio Science and Engineering, SMARAD Centre of Excellence, Aalto University, Espoo, Finland, Finland
We discuss tunable nanoantennas with resonances dominated by higher order electromagnetic multipole moments, by resonances that couple the electric and magnetic response, or even just by multiple spectrally interfering electric dipolar resonances. These antennas can provide novel functions as isolated elements or once arranged in an array.
11:00 - 11:30 - Imaging and Steering an Optical Wireless Nanoantenna Link Invited oral [Show abstract]
  • Klas Lindfors, University of Cologne, Germany
  • Daniel Dregely, University of Stuttgart, Germany
  • Markus Lippitz, University of Bayreuth, Germany
  • Nader Engheta, University of Pennsylvania, USA
  • Michael Totzeck, Carl Zeiss AG, Germany
  • Harald Giessen, University of Stuttgart, Germany
We demonstrate efficient transmission of optical power between two optical nanoantennas in a wireless antenna link. By controlling the phase of the signal driving the elements in a nanoantenna array, we furthermore realize optical beamsteering. The phased nanoantenna array allows us to steer the wireless nanoantenna link to dynamically address different receivers.
11:30 - 11:45 - Fano Nanoantenna for On-Chip Separation of Wavelength-Encoded Optical Signals Oral [Show abstract]
  • Dragomir Neshev, Australian National University, Australia
  • Rui Guo, Australian National University, Australia
  • Manuel Decker, Australian National University, Australia
  • Frank Setzpfandt, Australian National University, Australia
  • Yuri Kivshar, Australian National University, Australia
<p> We demonstrate a single plasmonic element Fano nanoantenna allowing for strong directional coupling of light to a silicon waveguide depending on the operational wavelength. This antenna can spatially separate wavelength-encoded optical signals, realizing an ultra-compact plasmonic demultiplexer.</p>
11:45 - 12:00 - Probing the Interactions Between Plasmonic Nanoantennas and Colloidal Quantum Dots with Temperature-Dependent Experiments Oral [Show abstract]
  • Quynh Le Van, Institut d’Électronique Fondamentale, University Paris-Sud, France
  • Xavier Le Roux, Institut d’Electronique Fondamentale, Univ. Paris-Sud, France
  • Tatiana V. Teperik, Institut d’Électronique Fondamentale, University Paris-Sud, France
  • Benjamin Habert, Laboratoire Charles Fabry, Institut d’Optique, Univ. Paris-Sud, France
  • François Marquier, Laboratoire Charles Fabry, Institut d’Optique, Univ. Paris-Sud, France
  • Jean-Jacques Greffet, Laboratoire Charles Fabry, Institut d’Optique, Univ. Paris-Sud, France
  • Aloyse Degiron, Institut d’Electronique Fondamentale, Univ. Paris-Sud, France
<p> In this article, we perform temperature-dependent experiments on an ensemble of PbS colloidal quantum dots (CQDs) coupled with plasmonic nanoring arrays. We show that our measurements cannot be explained by standard theory that treats emitters as two-level systems and propose a new mechanism to account for these findings.</p>
10:30 - Hyperbolic Metamaterials II

Session chairperson(s): Allan Boardman

10:30 - 10:45 - Active 3D plasmonics Oral [Show abstract]
  • na liu, MPI for intelligent systems, Germany
Active control of three-dimensional configuration is one of the key steps towards smart plasmonic nanostructures with desired functionalities. We lay out a multi-disciplinary strategy to create active 3D plasmonic nanostructures, which execute DNA-regulated conformational changes on the nanoscale.
10:45 - 11:15 - Hyperbolic Metamaterials for Enhanced Spontaneous Emission Withdrawn [Show abstract]
  • Zhaowei Liu, university of california San Diego, USA
  • Dylan Lu, UCSD, USA
  • Kangwei Wang , UCSD, USA
  • Jimmy Kan , UCSD, USA
  • Eric Fullerton , UCSD, USA
  • Paul Yu, UCSD, USA
<p> The spontaneous emission properties of a light emitter can be significantly modified by an adjacent hyperbolic metamaterial. We investigate how to design a hyperbolic metamaterial to enhance the emission rate at a desired operational frequency. About two orders of magnitude enhancement of the spontaneous emission rate was achieved in experiments.</p>
11:15 - 11:45 - Hyperbolic Metamaterials: How To Beat The Diffraction Limit Invited oral [Show abstract]
  • Emmanuel Centeno, Clermont University, Institut Pascal, CRNS UMR 6602, France
  • Jessica Benedicto, University of Aix-Marseille, CNRS, Centrale Marseille, Institut Fresnel UMR 7249, France
  • Antoine Moreau, Clermont University, Institut Pascal, CRNS UMR 6602, France
In this work, we develop theoretical tools that allow an efficient optimization of the optical resolution of flat lenses made of hyperbolic metamaterials. Our results demonstrate that feasible structures made of silver and TiO2 layers focus visible sub-wavelength images. We in particular show that defect metallic layers introduced into metallo-dielectric multilayers increase the sub-wavelength focalization distance up to 2λ.
11:45 - 12:00 - Toward the perfect lens with a simultaneous type I/type II hyperbolic metamaterial Oral [Show abstract]
  • Vincenzo Caligiuri, Dep. of Physics, University of Calabria, Italy
  • Rakesh Dhama, Dep. of Physics, University of Calabria, Italia
  • Kandammathe Valiyaveedu Sreekanth, Nanoplasm Laboratory, Dept. of Physics, Case Western Reserve University, Cleveland (USA)
  • Giuseppe Strangi, Nanoplasm Laboratory, Dept. of Physics, Case Western Reserve University, Cleveland (USA)
  • Antonio De Luca, Dep. of Physics, University of Calabria, Italia
We report the experimental realization of an HMM in which a simultaneous epsilon near zero and near pole behaviour is found. Supercollimation effect, as well as the possibility of exploiting this device as a perfect lens in the visible range, has been demonstrated, reaching a lambda/8 resolution.
10:30 - Metamaterials for sensing applications

Session chairperson(s): Dan Sievenpiper

10:30 - 11:00 - Flexible Metamaterials and New Advanced Photonics Applications Invited oral [Show abstract]
  • Andrea Di Falco, St Andrews University, United Kingdom
  • Peter Reader-Harris, St Andrews University, United Kingdom
  • Blair Kirkpatrick, St Andrews University, United Kingdom
  • Jingzhi Wu, St Andrews University, United Kingdom
  • Aline Heyerick, St Andrews University, United Kingdom
<p> We report on the progress of the physics and applications of flexible metamaterials in the visible range. In particular we describe the fabrication and optical properties of flexible plasmonic sensors for Surface Enhanced Raman Spectroscopy. We also report on our progress on the all optical manipulation of the membranes, both in microfluidics and the air environment.</p>
11:00 - 11:15 - A High-Q Split-Ring Resonator Based on Impedance Matching via Dielectric Materials Oral [Show abstract]
  • Hee-Jo Lee, Daegu University, Korea (South)
The split-ring resonator having a high quality(Q) factor using dielectric materials at microwave regime is proposed. To realize the high-Q resonator, impedance matching method is employed. According to the measured results, we find that the loaded-Q factor is about 1670 at the resonant frequency, 12.52 GHz.
11:15 - 11:30 - Simulation and Experimental Responses of the Asymmetric Split Ring Resonators (A SRRs) for Sensing Applications in the Mid-Infrared Region Oral [Show abstract]
  • Jharna Paul, University of Glasgow, United Kingdom
  • Graham Sharp, University of Glasgow, United Kingdom
  • Basudev Lahiri, University of Glasgow, United Kingdom
  • Richard De La Rue, University of Glasgow, United Kingdom
  • Nigel Johnson, University of Glasgow, United Kingdom
Abstract – In this paper, both simulated and experimental measurements of asymmetric split-ring resonators (A-SRRs) with varying diameters are reported. Their responses appear in the mid-infrared (IR) spectral region, which matches well with the vibrational resonances of many organic molecules - and they could potentially be used to detect protein molecules in their native biological environments. The use of a ZnSe substrate allows transmission spectra to be measured at wavelengths in the mid-IR.
11:30 - 11:45 - Narrowband Resonances in Optically Coupled Nanorods for Ultra-Sensitive Biosensing Withdrawn [Show abstract]
  • Arkadi Chipouline, FSU Jena, Germany
  • Egor Khaidarov, FSU Jena, Germany
  • Stefan Fasold, FSU Jena, Germany
<p> We present recently obtained experimental and theoretical results with the 1D chains of optically coupled nanoresonators exhibiting ultra narrowband resonances. Ultrahigh sensitivity is expected to be enough for reliable detection of exosomal content for express selective cancer diagnostics.</p>
11:45 - 12:00 - Novel Metamaterial Structures for Sensing Applications Oral [Show abstract]
  • Ifeoma Mbomson, University of Glasgow, United Kingdom
  • Scott McMeekin, Glasgow Caledonian University, United Kingdom
  • Richard De La Rue, University of Glasgow, United Kingdom
  • Nigel Johnson, University of Glasgow, United Kingdom
<p> We demonstrate a higher sensitivity by using asymmetric metamaterial structures, as compared with their symmetric counterparts. We find that measurement of the same quantity of analyte deposited simultaneously on arrays of symmetric and asymmetric metamaterial structures leads to a greater red-shift, based on the refractive index change (Δn) in the medium that surrounds the structure.</p>
10:30 - Analytical Modelling II

Session chairperson(s): Mohamed Farhat

10:30 - 10:45 - Orthogonality Properties Of Eigenmodes Inside Z-Invariant Periodic Structures Oral [Show abstract]
  • Denis Tihon, Université Catholique de Louvain, Belgium
  • Christophe Craeye, Université Catholique de Louvain, Belgium
  • Caner Guclu, University of California, Irvine, US
  • Filippo Capolino, University of California, Irvine, US
  • Stafford Withington, Cambridge University, UK
One of the great challenges of metamaterial homogenization resides in the computation of the reflection and transmission coefficients at interface with air. We propose a scalar product for which modes are naturally orthogonal for lossless metamaterials invariant along one direction of space. It paves the way to exact projection of excitation into propagative modes without computing the evanescent ones.
10:45 - 11:00 - Subwavelength Toroidal Dipole Moment at Optical Wavelengths Oral [Show abstract]
  • Sang Soon Oh, Imperial College London, United Kingdom
  • John J Wood, Imperial College London, United Kingdom
  • Seong-Han Kim, Advanced Photonics Research Institute, South Korea
  • Chul-Sik Kee, Advanced Photonics Research Institute, South Korea
  • Ortwin Hess, Imperial College London, United Kingdom
<p> We have developed an analyticalmodel to describe spoof surface plasmon polaritons at optical wavelengths in a metallic grove array structure. Based on the model and numerical calculations, a band gap for spoof surface plasmon polaritions is predicted to exist at optical wavelengths. By introducing a defect, we demonstrate subwavelength scale localization of spoof surface plasmon modes which have a strong toroidal dipole moment.</p>
11:00 - 11:15 - Dynamically Self-Assembled Silver Nanoparticles as a Thermally Tunable Metamaterial Oral [Show abstract]
  • Martin Fruhnert, Karlsruhe Institute of Technology, Germany
  • Wiktor Lewandowski, University of Warsaw, Poland
  • Józef Mieczkowski, University of Warsaw, Poland
  • Ewa Górecka, University of Warsaw, Poland
  • Carsten Rockstuhl, Karlsruhe Institute of Technology, Germany
<p> Tunability is a crucial requirement for the development of many future metamaterial-based technologies. Here, we show the design, the fabrication, and the characterization of an actively tunable, self-assembled metamaterial. The material is composed of silver nanoparticles covered with a liquid crystal that shows a pronounced thermal response, making it suitable for controlled tunability. This is possible since the nanoparticles spatially distribute in different configurations depending on the temperature. This strongly influences the optical properties of the material. The entire process is reversible and the optical response reproducibly changes across many cycles. The presented method paves the way for many future applications of tunable metamaterials in the visible region.</p>
11:15 - 11:30 - Tunable Dual-Band Subwavelength Imaging with a Wire Medium Slab Loaded with Nanostructured Graphene Metasurfaces Oral [Show abstract]
  • Ali Forouzmand, University of Mississippi, USA
  • Alexander B. Yakovlev, University of Mississippi, USA
In this paper, we demonstrate that a wire medium (WM) slab loaded with graphene-nanopatch metasurfaces (GNMs) enables the enhancement of evanescent waves for the subwavelength imaging at terahertz (THz) frequencies. The excited surface plasmons at the lower and upper GNMs are coupled by an array of metallic wires. The dual nature (capacitive/inductive) of the GNM is utilized in order to design a dual-band lens in which the unique controllable properties of graphene and the structural parameters of WM slab provide more degrees of freedom in controlling two operating frequency bands. The lens can support the subwavelength imaging simultaneously at two tunable distinct frequencies with the resolution better than λ/6 even if the distance between GNMs is a significant fraction of wavelength (> λ/5.5).
11:30 - 12:00 - Extreme Platforms for Photonics Invited oral [Show abstract]
  • Nader Engheta, University of Pennsylvania, USA
We have been exploring a variety of scenarios as “extreme platforms” for light-matter interaction. This includes extreme dimensionality as in metasurface and metawire photonics, “static optics” in extreme-parameter metastructures, nonreciprocity in extreme near field, and signal processing at the nanoscale, just to name a few. In this presentation, we will present some of our most recent results on these topics.
12:00 - 13:30 - Lunch break (Thursday)
13:30 - 15:00 - Oral session (Thursday afternoon 1)
13:30 - Optical and IR Metamaterials II

Session chairperson(s): Nader Engheta

13:30 - 14:00 - Vertical Split-Ring Resonators: From Plasmon Resonances to Nanophotonic Sensing and Light Manipulation Invited oral [Show abstract]
  • Din Ping Tsai, Research Center for Applied Sciences, Academia Sinica, Taiwan
  • Pin Chieh Wu, Department of Physics, National Taiwan University, Taiwan
  • Wei-Lun Hsu , Department of Physics, National Taiwan University, Taiwan
  • Wei Ting Chen, Department of Physics, National Taiwan University, Taiwan
  • Yao-Wei Huang , Department of Physics, National Taiwan University, Taiwan
  • Chun Yen Liao , Department of Physics, National Taiwan University, Taiwan
  • Wei-Yi Tsai, Department of Physics, National Taiwan University, Taiwan
  • Ai Qun Liu, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
  • Nikolay I. Zheludev, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, UK
  • Greg Sun, Department of Engineering, University of Massachusetts Boston, U.S.A.
<p> We present vertical split-ring resonators (VSRRs) which behave as magnetic metamolecules sensitive to both the incident electric and magnetic fields upon excitation. A couple of potential applications such as VSRR-based highly sensitive refractive-index sensor and metasurface for light manipulation in optical communication frequency will also be demonstrated.</p>
14:00 - 14:15 - Coherent Image Processing with Plasmonic Metasurfaces Oral [Show abstract]
  • Maria Papaioannou, University of Southampton, United Kingdom
  • Eric Plum, University of Southampton, United Kingdom
  • Jo͂ao Valente, University of Southampton, United Kingdom
  • Edward T. F. Rogers, University of Southampton, United Kingdom
  • Nikolay I. Zheludev, University of Southampton, Nanyang Technological University, United Kingdom, Singapore
We demonstrate spatial and temporal control over metamaterial properties using coherent interactions of beams of light on plasmonic metasurfaces. This is illustrated by all-optical logical operations between two images.
14:15 - 14:30 - Fabrication of Plasmonic Nanoantennas by Femtosecond Direct Laser Writing Lithography - Effects of Near Field Coupling on SEIRA Enhancement Oral [Show abstract]
  • Harald Giessen, University of Stuttgart, Germany
  • Frank Neubrech, University of Stuttgart, Germany
  • Shahin Bagheri, University of Stuttgart, Germany
  • Ksenia Weber, University of Stuttgart, Germany
<p> We utilized direct laser writing for the fabrication of plasmonic nanoantennas resonant in the near- and mid-infrared spectral range to investigate the impact of plasmonic coupling between neighbouring antennas on the enhancement in surface-enhanced infrared spectroscopy.</p>
14:30 - 14:45 - Parity-Time Symmetry in Negative Index Optical Metamaterials with Parametric Amplifier Settings Oral [Show abstract]
  • Amarendra Kumar Sarma, Indian Institute of Technology Guwahati, India
Parity-time (PT) symmetry in an optical parametric amplifier, based on negative index metamaterial (NIM), is studied. Parametric amplification processes are considered in all the three regimes of PT symmetry, namely, below, at and above the PT threshold. It may be possible to exploit PT symmetry for various applications including compensation of loss in NIMs.
14:45 - 15:00 - Spectrally Selective Infrared Detector Based On A Plasmonic Piezoelectric Nanoelectromechanical Metasurface Oral [Show abstract]
  • Yu Hui, Northeastern University, USA
  • Juan Sebastian Gomez-Diaz , University of Texas at Austin, USA
  • Andrea Alu', University of Texas at Austin, USA
  • Matteo Rinaldi, Northeastern University, USA
This paper reports the demonstration of a spectrally selective nanoelectromechanical system (NEMS) infrared detector based on an ultrathin plasmonic piezoelectric resonant metasurface. The combination of nanoplasmonic and piezoelectric electromechanical resonances enables strong and spectrally selective absorption of infrared radiation in an ultra-low volume NEMS resonator with high electromechanical performance and unprecedented thermal capabilities. These attributes lead to the demonstration of a high resolution (noise equivalent power of 2.1 nW/Hz^1/2), fast (thermal time constant of 440 μs) uncooled long wavelength infrared (LWIR) detector with ~80% absorption for an optimized spectral bandwidth around 8.8 μm. This demonstration marks a milestone towards the implementation of a new class of high performance, miniaturized low power IR spectroscopy and multi-spectral imaging systems.
13:30 - Hyperbolic Metamaterials III

Session chairperson(s): Klas Lindfors

13:30 - 14:00 - Super-Coulombic Virtual Polariton Exchange Invited oral [Show abstract]
  • Ward Newman, Dept. Electrical and Computer Engineering - University of Alberta, Canada
  • Cristian Cortes, Dept. Electrical and Computer Engineering - University of Alberta, Canada
  • David Purschke, Dept. Physics - University of Alberta, Canada
  • Amir Afshar, Dept. Chemical and Materials Engineering - University of Alberta, Canada
  • Zhijiang Chen, Dept. Electrical and Computer Engineering - University of Alberta, Canada
  • Glenda De los Reyes, Dept. Physics - University of Alberta, Canada
  • Frank Hegmann, Dept. Physics - University of Alberta, Canada
  • Ken Cadien, Dept. Chemical and Materials Engineering - University of Alberta, Canada
  • Robert Fedosejevs, Dept. Electrical and Computer Engineering - University of Alberta, Canada
  • Zubin Jacob, Dept. Electrical and Computer Engineering - University of Alberta, Canada
We demonstrate experimentally that hyperbolic metamaterials fundamentally alter dipole-dipole interactions conventionally limited to the near-field. The effect is captured in long-range energy transfer and lifetime reduction of donor emitters due to acceptors placed 100 nm away.
14:00 - 14:30 - A New View on Hyperbolic Metamaterials Invited oral [Show abstract]
  • Allan Boardman, University of Salford, United Kingdom
<p> Hyperbolic metamaterials are anisotropic but very little has been done to admit any significance to the orientation of the optical axis. This is a very important aspect of wave propagation in such materials so setting up calculations in which the optical axis is assumed to lie only along one direction leads to completely incorrect conclusions.</p>
14:30 - 14:45 - Investigation of the Divergence Wire Medium Hyperlens Purcell Factor Oral [Show abstract]
  • Sergei Kosulnikov, Aalto University, Finland
  • Dmitry Filonov, ITMO University, Russia
  • Stanislav Glybovski, ITMO University, Russia
  • Pavel Belov, ITMO University, Russia
  • Sergei Tretyakov, Aalto University, Finland
  • Constantin Simovski, Aalto University, Finland
<p> In this work we show that a wire-medium hyperlens can be used for significant enhancement of radiation from small sources. This enhancement holds in the ultra-wide frequency band and can be used in numerous applications. We investigate how the divergence of metal wires and other design parameters modifies the radiated power of a dipole, comparing with an array of parallel wires, implement the optimized hyperlens in the microwave range and verify the theoretical results experimentally.</p>
14:45 - 15:00 - Optical Characterization of Epsilon-Near-Zero & Epsilon-Near-Pole Resonances of Gold Nanorod Arrays Oral [Show abstract]
  • R Starko-Bowes, University of Alberta, Canada
  • J J. Atkinson, University of Alberta, Canada
  • W Newman, University of Alberta, Canada
  • H Hu, University of Alberta, Canada
  • E Kallos, Metamaterial Technologies Inc., Canada
  • G Palikaras, Metamaterial Technologies Inc., Canada
  • R Fedosejevs, University of Alberta, Canada
  • S Pramanik, University of Alberta, Canada
  • Z Zacob, University of Alberta, Canada
Abstract – We report on the optical characterization of metallic nanowire (NW) metamaterials. In contrast to multilayer metamaterials, nanowire metamaterials exhibit an omnidirectional epsilon-near pole (ENP) and an angularly dependent epsilon-near-zero (ENZ), which are both highly absorptive resonances. We also demonstrate large tunability of the epsilon-near-zero resonance in the visible spectrum from 583 nm to 805 nm as the gold nanorod fill fraction changes from 26% to 10.5%. Energy dispersive x-ray (EDX) and X-ray Diffraction (XRD) analyses are used to ascertain the quality of electrochemically deposited Au nanowires prior to and after annealing.
13:30 - Graphene

Session chairperson(s): Bumki Min

13:30 - 14:00 - Ultrafast Plasmon Emission and Hot Carrier Dynamics in Photo-Excited Graphene Extended oral [Show abstract]
  • Joachim Hamm, Imperial College London, United Kingdom
  • Adam Page, Imperial College London, United Kingdom
  • Jorge Bravo-Abad, Universidad Autonoma de Madrid, Spain
  • Francisco Garcia-Vidal, Universidad Autonoma de Madrid, Spain
  • Ortwin Hess, Imperial College London, United Kingdom
<p> Graphene supports strongly confined transverse-magnetic sheet plasmons whose spectral characteristics depend on the energetic distribution of Dirac particles. When the carrier system is inverted by photo-excitation graphene plasmons can become amplified and are spontaneously emitted. With rates in the 10-100 fs range nonequilibrium plasmon (NP) emission provides an non-instantaneous channel for ultrafast carrier recombination whose impact on the carrier relaxation dynamics is here investigated together with optical phonon (OP) emission. Our theoretical results are in agreement with the experimentally observed hot carrier relaxation dynamics in photo-excited graphene.</p>
14:00 - 14:30 - Graphene Plasmonics and its Applications at THz Frequencies Invited oral [Show abstract]
  • Mohamed Farhat, KAUST, Saudi Arabia
  • Muhammad Amin, KAUST, Saudi Arabia
  • Sebastien Guenneau, CNRS, France
  • Hakan Bagci, KAUST, Saudi Arabia
We propose to use the remarkable mechanical and optical properties of graphene monolayers to couple light and phonons via surface plasmons. This is a achieved by acoustically corrugating a graphene sheet and thus forming a diffraction grating that, under light illumination permits the generation of graphene plasmons with many intriguing properties. This efficient way of plasmons generation can be used for many applications ranging from Terahertz (THz) antennas, bio-chemical sensors, tunable invisibility cloaks and THz radiation modulation.
14:30 - 14:45 - Non-reciprocal Nonlinear Imaging With Dimer-Based Metasurfaces Oral [Show abstract]
  • Ekaterina Poutrina, Air Force Research Laboratory; UES, Inc., USA
  • Augustine M. Urbas, Air Force Research Laboratory, USA
We demonstrate that manifestation of nonlinear magneto-electric interference in the wave mixing process can allow not only for directional, but also for a non-reciprocal nonlinear generation from nanoelements, with the direction of nonlinear generation decoupled from that of the excitation beams. When arranged in a periodic fashion forming a metasurface, the arrays of such non-reciprocal nonlinear optical antennas can give rise to a series of unique nonlinear phenomena, with an example of a non-reciprocal nonlinear imaging obtained using a process of difference frequency generation presented here.
14:45 - 15:00 - Resonant Excitations of the Second Harmonic in Dielectric-Graphene Metamaterials for Different Polarizations Withdrawn [Show abstract]
  • Yuriy Rapoport, Taras Shevchenko National University of Kyiv, Ukraine, Ukraine
  • Vladimir Grimalsky, Autonomous University of State Morelos (UAEM), , Mexico
  • Andrei Lavrinenko, Technical University of Denmark, Denmark
  • Allan Boardman, University of Salford, UK
The giant resonant excitation of the second harmonic of THz radiation in planar “dielectric – graphene – dielectric…” metamaterial is investigated. Oblique incidence of s- and p- polarized first harmonics is considered, using kinetic and hydrodynamic approaches. The reflection into the second harmonic reaches the values of 0.1 for intensities and more.
13:30 - Chiral Metamaterials II

Session chairperson(s): Mats Gustafsson

13:30 - 14:00 - Microwave Photonic Topological Insulators Invited oral [Show abstract]
  • Jianwen Dong, Sun Yat-sen University, China
We proposed a microwave photonic topological insulator in non-bianisostropic photonic metacrystal waveguide with ε/μ-matching meta-atoms. Gapless pseudospin-momentum locked edge states and robust transport were experimentally observed. Dispersion-immune photonic topological insulators were realized by staggered photonic metacrystals.
14:00 - 14:15 - Controlling THz and Far-IR Waves with Chiral and Bianisotropic Metamaterials Oral [Show abstract]
  • Maria Kafesaki, Foundation for Research and Technology Hellas and University of Crete, Greece
  • George Kenanakis, Foundation for Research and Technology Hellas and University of Crete, Greece
  • Angelos Xomalis, Foundation for Research and Technology Hellas and University of Crete, Greece
  • Maria Farsari, Foundation for Research and Technology Hellas , Greece
  • George Deligiorgis, Foundation for Research and Technology Hellas , Greece
  • Eleftherios Economou, Foundation for Research and Technology Hellas and University of Crete, Greece
  • Costas Soukoulis, Foundation for Research and Technology Hellas and Iowa State University, Greece
We review our recent studies on chiral, switchable chiral, and bianisotropic metamaterials, and the possibilities that they offer for the control of THz and far-IR radiation. Employing such metamaterials, strong and switchable optical activity, asymmetric transmission, and asymmetric total absorption are demonstrated, both theoretically and experimentally.
14:15 - 14:30 - A Chiral Twist To Optical Forces Between Bilayer Metasurfaces Oral [Show abstract]
  • Sophie Viaene, Vrije Universiteit Brussel, Belgium
  • Vincent Ginis, Vrije Universiteit Brussel, Belgium
  • Pieter Verhulst, Vrije Universiteit Brussel, Belgium
  • Jan Danckaert, Vrije Universiteit Brussel, Belgium
  • Philippe Tassin, Chalmers University of Technology, Sweden
We investigate the optical forces that arise when chiral metasurfaces are illuminated by circularly polarized radiation. Using the Maxwell stress tensor formalism we calculate the momentum transfer for several chiral designs and incident polarizations from full-wave numerical simulations. We relate chiral frequency-dependent resonances to a rich variety of optical forces.
14:30 - 15:00 - Circular Polarization Effects in Metamaterials Invited oral [Show abstract]
  • Kuniaki Konishi, The University of Tokyo, Japan
  • Makoto Kuwata-Gonokami, The University of Tokyo, Japan
The symmetry of a material plays a crucial role in polarization sensitive optical phenomena; it is therefore powerful to employ symmetry-controlled artificial nanostructures when developing devices to control the polarization of light. We have been developing methods to control circularly polarized light using such metamaterials. In this presentation, we show the recent progress made in our research on the control of circularly polarized light emission from chiral photonic nanostructures, active THz polarization control with MEMS spiral metamaterials and second-harmonic generation from a metamaterial with threefold rotational symmetry.
15:00 - 15:30 - Coffee break
15:30 - 17:00 - Oral session (Thursday afternoon 2)
15:30 - Light concentration, focusing and harvesting

Session chairperson(s): Kuniaki Konishi

15:30 - 15:45 - Direct Laser Writing of Thick Metamaterial Blocks: Infrared Light Concentrators Oral [Show abstract]
  • Johnny Moughames, University of Technology of Troyes, France
  • Safi Jradi, University of Technology of Troyes, France
  • Tieh-Ming Chan, Institut Fresnel, Université Aix-Marseille, France
  • Suzanna Akil, Laboratoire de Chimie et Physique, Université de Lorraine, France
  • Yann Battie, Laboratoire de Chimie et Physique, Université de Lorraine, France
  • Aen Naciri, Laboratoire de Chimie et Physique, Université de Lorraine, France
  • Ziad Herro, Laboratoire de Physique Appliqué, Université Libanaise, Liban
  • Sébastien Guenneau, Institut Fresnel, Université Aix-Marseille, France
  • Stefan Enoch, Institut Fresnel, Université Aix-Marseille, France
  • Aurélien Bruyant, University of Technology of Troyes, France
<p> We present mid-IR light concentrators based on a microstructured polymer film. The polymer thick film is microstructured as such to fine tune the effective refractive index profile throughout the polymer surface in order to efficiently focus light. Herein, we present simulated and experimental demonstration of the photonic design for a mid-IR light concentrator operating at a wavelength of 10 µm. FDTD simulations were realized in order to determine optimum structure parameters.</p>
15:45 - 16:00 - Confining Light with Superlocalized Plasmon Resonances Oral [Show abstract]
  • Maxim Gorkunov, A. V. Shubnikov Institute of Crystallography RAS, Russia
  • Boris Sturman, Institute of Automation and Electrometry, Russian Academy of Sciences, Russia
  • Evgeniy Podivilov, Institute of Automation and Electrometry, Russian Academy of Sciences, Russia
We study plasmonic properties of metal nanoparticles with sharp corner- and tip-shaped surface perturbations supporting discrete plasmon resonances superlocalized on the scale of the curvature radius. We reveal the conditions for employing such particles as nano-antennas that precisely couple the free-space light to the nanosize volumes near the perturbation apexes with the light fields enhanced by several orders of magnitudes
16:00 - 16:15 - A Self-Supporting Broadband Zoned Fishnet Metamaterial Lens Operating at the Millimeter-Wave V-Band Oral [Show abstract]
  • Bakhtiyar Orazbayev, Universidad Pública de Navarra, Spain
  • Victor Pacheco-Peña, Universidad Pública de Navarra, Spain
  • Miguel Beruete, Universidad Pública de Navarra, Spain
  • Miguel Beruete, Imperial College London, United Kingdom
<p> By combining the zoning technique with the strong dispersion of the fishnet metamaterial, a broadband fishnet diffractive optical element is designed, fabricated and measured at millimeter-waves. Diffraction-limited full width at half maximum ~0.8 wavelength is demonstrated experimentally when the focal properties of the lens are studied. Also, directivity of ~16.6 dBi is achieved when the fishnet lens is used in a lens antenna configuration together with an open-ended waveguide operating as a feeder</p>
16:15 - 16:30 - Enhancement of Photovoltaic Absorption in Thin-film Silicon Solar Cells by All-dielectric Light-trapping and Antireflective Coatings Oral [Show abstract]
  • Pavel Voroshilov, Aalto University, Finland
  • Constantin Simovski, Aalto University, Finland
  • Pavel Belov, ITMO University, Russia
  • Alexander Shalin, ITMO University, Russia
We study the efficiency of several types of all-dielectric light-trapping and antireflective coatings for the enhancement of photovoltaic absorption in thin-film silicon solar cells. We compare the photovoltaic absorption enhancement offered by a square array of nanovoids in the dielectric covering of the cell with that granted by a flat blooming layer, and a densely packed array of dielectric nanospheres. The dependence of anti-reflection and light-trapping properties on the angle of incidence is numerically investigated, and it is shown that the array of voids keeps optimal also after averaging over the incidence angles.
16:30 - 16:45 - Cavity-Backed Non-Uniform Partially Reflective Metasurface (PRM) for Enhanced Directivity and Power Extraction Oral [Show abstract]
  • Mohamed Salem, Polytechnique Montreal, Canada
  • Karim Achouri, Polytechnique Montreal, Canada
  • Christophe Caloz, Polytechnique Montreal, Canada
  • Efthymios Kallos, Metamaterial Technologies Inc., Canada
  • George Palikaras, Metamaterial Technologies Inc., Canada
We propose a novel design to enhance the directivity and power extraction of a dipole source. The design consists in a cavity-backed non-uniform partially reflective metasurface (PRM). The multiple reflections inside the cavity yield full transmission by way of constructive interference at the PRM.We show that by allowing the metasurface to be partially reflective, the realization constrains are relaxed compared to a design with a reflection-less metasurface.
16:45 - 17:00 - Phase Function and Far-Field Focusing by Flat Metal-Dielectric Lens Oral [Show abstract]
  • Nikolai Khilo, Institute of Physics of NAS Belarus, Republic of Belarus
  • Mohammed A.Binhussain, The National Center for Building System, KACST, Saudi Arabia
  • Vladimir Belyi, Institute of Physics of NAS Belarus, Republic of Belarus
  • Nikolai Kazak, Institute of Physics of NAS Belarus, Republic of Belarus
Spectral, angular and spatial characteristics are calculated of flat lenses on the basis of layered Ag/TiO2 structures in ultraviolet light. It is shown that phase function of MD-structure allows determining not only its usefulness as a lens, but also focal distance. The equation of the lens is obtained for the common case when the media at the input and output are different.
15:30 - Metasurfaces VI

Session chairperson(s): Zhaowei Liu

15:30 - 16:00 - Advances in Anisotropic Artificial Impedance Surfaces Invited oral [Show abstract]
  • Dan Sievenpiper, UCSD, USA
  • Ryan Quarfoth, HRL Laboratories, USA
  • Jiyeon Lee, UCSD, USA
<p> The interaction between an object and electromagnetic waves can be described in terms of its surface impedance. By introducing large anisotropy into artificial impedance surfaces, it is possible to achieve a high degree of control over this interaction that is not possible with isotropic surfaces. These surfaces can be used to create nonscattering surface waveguides, beam shifting structures, and to control scattering from edges and other features. With new patterning techniques we can obtain arbitrary and smoothly varying impedance functions for even greater control.</p>
16:00 - 16:15 - Mode Normalization and Mode Sensitivity in Periodic Arrays of Metallic Nanoantennas Oral [Show abstract]
  • Thomas Weiss, 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany
  • Martin Mesch, 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany
  • Harald Giessen, 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Germany
  • Wolfgang Langbein, School of Physics and Astronomy, Cardiff University, United Kingdom
  • Egor Muljarov, School of Physics and Astronomy, Cardiff University, United Kingdom
<p> We present an analytical normalization procedure for resonances in periodic arrays of nanoantennas, which can be used to predict the sensitivity of resonances with respect to changes of the surrounding dielectric environment by first order perturbation theory.</p>
16:15 - 16:30 - Patterned Graphene Edges for Tailored Reflection of Plasmonic Modes Oral [Show abstract]
  • Bjorn Maes, University of Mons, Belgium
  • Gilles Rosolen, University of Mons, Belgium
Straight graphene edges are known to completely reflect plasmonic modes. Here, however, we examine structured graphene edges, which provide the ability to tailor and even completely cancel the reflection. Interesting phase changes and resonances appear when longitudinal modes interact with transverse modes mediated by edge plasmons.
16:30 - 16:45 - Linear Polarization Conversion With Plasmonic Planar Antennas Oral [Show abstract]
  • Mathilde Makhsiyan, ONERA - The French Aerospace Lab, France
  • Quentin Lévesque, ONERA - The French Aerospace Lab, France
  • Patrick Bouchon, ONERA - The French Aerospace Lab, France
  • Fabrice Pardo, Laboratoire de Photonique et de Nanostructures (LPN-CNRS), France
  • Julien Jaeck, ONERA - The French Aerospace Lab, France
  • Riad Haïdar, ONERA - The French Aerospace Lab, France
  • Jean-Luc Pelouard, Laboratoire de Photonique et de Nanostructures (LPN-CNRS), France
The ability to control the polarization state of an electromagnetic wave thanks to plasmonic metasurfaces is at the core of many various applications. We demonstrate both theoretically and experimentally that plasmonic planar L-shaped antennas can induce a 90°-rotation of the linear polarization of light with a nearly total efficiency in the mid-wavelength infrared. Then, in order to increase the bandwidth of the conversion, the combination of several L-shaped antennas in the same subwavelength period is explored.
16:45 - 17:00 - Coherent Polarization Spectroscopy of Metamaterials Oral [Show abstract]
  • Kotaro Hiramatsu, University of Southampton, United Kingdom
  • Eric Plum, University of Southampton, United Kingdom
  • Joao Valente, University of Southampton, United Kingdom
  • Kevin MacDonald, University of Southampton, United Kingdom
  • Nikolay Zheludev, University of Southampton, United Kingdom
We demonstrate control of light polarization with light, without nonlinearity. The manifestation of optical activity in a metasurface is dynamically controlled using the coherent interaction of light waves on the nanostructure to enhance and suppress the light-matter interaction. This enables ultrafast polarization modulation and highly sensitive detection of optical activity.
15:30 - Fano Resonances and THz Metamaterials

Session chairperson(s): Nanfang Yu

15:30 - 15:45 - Enhanced Fluorescence Of Quantum Dots By Fano Resonance In Optical Metamaterials Composed Of Asymmetric Double Bars Oral [Show abstract]
  • Yuto Moritake, Tohoku Univ., Japan
  • Yoshiaki Kanamori, Tohoku Univ., Japan
  • Kazuhiro Hane, Tohoku Univ., Japan
We experimentally demonstrated enhanced fluorescence of quantum dots by Fano resonance in optical metamaterials composed of asymmetric double bars (ADBs). ADB metamaterials hybridized with quantum dots dispersing in a polymer layer were fabricated and fluorescence at a wavelength of around 1350 nm was measured by a microscopic fluorescence measurement system. Fivefold enhancement of fluorescence from quantum dots by Fano resonance in ADB metamaterials was observed. Depending on a degree of asymmetry of ADB metamaterials, spectral shapes of enhanced fluorescence were modified.
15:45 - 16:00 - High Resolution Terajets Via 3D Dielectric Cuboids at THz Frequencies Oral [Show abstract]
  • Victor Pacheco-Peña, Universidad Pública de Navarra, Antennas Group - TERALAB, Spain
  • N.A. Haritoshin, Siberian State Academy of Geodesy, Russia
  • I.V. Minin, Siberian State Academy of Geodesy, Russia
  • O.V. Minin, Siberian State Academy of Geodesy, Russia
  • Miguel Beruete, Universidad Pública de Navarra, Antennas Group - TERALAB, Spain
An alternative mechanism to generate terajets at terahertz frequencies is demonstrated using 3D dielectric cuboids. The focusing properties of the terajets are evaluated for several cuboids of different dimensions. Also, the backscattering enhancement is evaluated using metal particles within the terajet region, demonstrating a maximum enhancement of 11.38dB for a gold particle of diameter 0.29λ0. Finally, multifrequency operation is verified at the fundamental and first frequency harmonics at sub-THz frequencies, demonstrating a good agreement with numerical results in terms of FWHMx.
16:00 - 16:15 - Resonant Terahertz Absorption in Carbon Microfibres Oral [Show abstract]
  • Irina Khromova, University College London, United Kingdom
  • Oleg Mitrofanov, University College London, United Kingdom
  • Miguel Navarro-Cia, Imperial College London, United Kingdom
  • Inigo Liberal, Public University of Navarra, Spain
  • Igal Brener, Sandia National Laboratory, USA
  • John Reno, Sandia National Laboratory, USA
  • Leonid Melnikov, Saratov State Technical University, Russia
  • Andrey Ponomarev, St. Petersburg Polytechnical University, Russia
Microsized carbon fibres exhibit strong resonant absorption at terahertz frequencies. Using near-field terahertz time-domain spectroscopy, we probe their conductivity by analysing the degree of field enhancement produced by plasmonic resonances. We demonstrate, theoretically and experimentally, the potential usability of carbon microfibres as terahertz absorbers with engineerable response.
16:15 - 16:30 - Dual And Chiral Objects For Optical Activity In General Scattering Diirections Oral [Show abstract]
  • Ivan Fernandez-Corbaton, Institute of Nanotechnology, KIT, Germany
  • Martin Fruhnert, nstitut fuer Theoretische Festkoerperphysik, KIT, Germany
  • Carsten Rockstuhl, nstitut fuer Theoretische Festkoerperphysik, Institute of Nanotechnology, KIT, Germany
We demonstrate a route to design structures exhibiting optical activity in general scattering directions. This means that when the structure is illuminated from an arbitrary direction, the polarization of the field measured in another arbitrary direction is a rotated version of the incident polarization. The rotation angle does not depend on the incident polarization.
16:30 - 16:45 - Control of Caesium Atomic Spectra with 2D Plasmono-Atomic Metamaterial Oral [Show abstract]
  • Eng Aik Chan, Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore, Singapore
  • Syed Abdullah Aljunid, Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore, Singapore
  • Giorgio Adamo, Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore, Singapore
  • Martial Ducloy, 1 Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore - 2 Université Paris 13, Laboratoire de Physique des Lasers, CNRS, Villetaneuse, France, Singapore, France
  • David Wilkowski, 1Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore - 3Centre for Quantum Technologies, National University of Singapore,Singapore - 4Merlion MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit,Singapore, Singapore
  • Nikolay Zheludev, 1 Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore - 5 Optoelectronics Research Centre & Centre for Photonic Metamaterials, University of Southampton, Southampton, UK, Singapore, United Kingdom
We report on a new type of two-dimensional material system of sub-wavelength thickness, a plasmonic metasurface in atomic gas. Such plasmono-atomic metamaterial has unique properties underpinned by the interactions in the nearfield layer of the nanostructure.
16:45 - 17:00 - A New Monolithic Dielectric Resonator Metasurface Design for High Quality-Factor Fano Resonances Oral [Show abstract]
  • Salvatore Campione, Center for Integrated Nanotechnologies and Sandia National Laboratories, USA
  • Lorena Basilio, Sandia National Laboratories, USA
  • Larry Warne, Sandia National Laboratories, USA
  • William Langston, Sandia National Laboratories, USA
  • Ting Luk, Center for Integrated Nanotechnologies and Sandia National Laboratorie, USA
  • Joel Wendt, Sandia National Laboratories, USA
  • Sheng Liu, Center for Integrated Nanotechnologies and Sandia National Laboratorie, USA
  • Igal Brener, Center for Integrated Nanotechnologies and Sandia National Laboratorie, USA
  • Michael Sinclair, Sandia National Laboratories, USA
We present an experimental demonstration of a new, monolithic dielectric resonator metasurface design that yields high quality-factor Fano resonances. Our approach utilizes perturbations of high-symmetry resonator geometries, such as cubes, to induce intra-resonator couplings between the otherwise orthogonal resonator modes.
15:30 - Chiral metamaterials III

Session chairperson(s): Carsten Rockstuhl

15:30 - 16:00 - Optical Conveyor Belt with Chiral Metamaterials Extended oral [Show abstract]
  • David E. Fernandes, Instituto de Telecomunicações - Universidade de Coimbra, Portugal
  • Mário G. Silveirinha, Instituto de Telecomunicações - Universidade de Coimbra, Portugal
<p> Here, we propose a novel mechanism to control the sign of the optical pressure on a material body. It is shown that the interference between a chiral light beam and its reflection on a mirror may allow pulling a chiral body with no optical traps towards the light source. Crucially, it is proven that this effect is independent of the specific location the body with the respect to the mirror and that the control of the incoming wave helicity may allow one to harness the sign of the optical force.</p>
16:00 - 16:30 - Fabrication And Characterization Of Micron-Scale 3D Metamaterials In CMOS Compatible Materials Extended oral [Show abstract]
  • D. Bruce Burckel, Sandia National Laboratories, USA
  • Michael B. Sinclair, Sandia National Laboratories, USA
  • Paul S. Davids, Sandia National Laboratories, USA
  • Patrick S. Finnegan, Sandia National Laboratories, USA
  • Paul J. Resnick, Sandia National Laboratories, USA
Membrane projection lithography is used to create 3-dimensional unit cells in a silicon matrix decorated with metallic inclusions. The structures show pronounced resonances in the 4-16 micrometer wavelength range and demonstrate direct coupling to the magnetic field of a normally incident TEM wave, behavior only possible for vertically oriented resonators.
16:30 - 17:00 - Gauge Field Enabled Optical Phenomena with Metamaterials Extended oral [Show abstract]
  • Jensen Li, University of Birmingham, United Kingdom
  • Fu Liu, University of Birmingham, United Kingdom
We show that by considering field transformation on two dimensional wave propagation, a real-space gauge field for photon can be identified as tilted anisotropy with realization using reciprocal and anisotropic metamaterials. It shifts the centers instead of changing sizes and shapes of the local dispersion surfaces to control light propagation. With a nontrivial gauge field and its associated pseudo-magnetic field, we show that optical spin-Hall effect and edge state for photon can be achieved with anisotropic metamaterials.
17:00 - 17:30 - Closing ceremony

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