Author(s): V. S. Asadchy, Y. Ra’di, J. Vehmas, and S. A. Tretyakov

A mirror made with metamaterials reflects at a selected angle and only responds to radiation of a specific frequency, while being transparent to other radiation.

[Phys. Rev. Lett. 114, 095503] Published Fri Mar 06, 2015

http://link.aps.org/doi/10.1103/PhysRevLett.114.095503

Author(s): G. Georgiou, C. Tserkezis, M. C. Schaafsma, J. Aizpurua, and J. G'omez Rivas
We demonstrate the photogeneration of loaded dipole plasmonic antennas resonating at THz frequencies. This is achieved by the patterned optical illumination of a semiconductor surface using a spatial light modulator. Our experimental results indicate the existence of capacitive and inductive couplin…
[Phys. Rev. B 91, 125443] Published Tue Mar 31, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.125443

Author(s): Georgia T. Papadakis, Pochi Yeh, and Harry A. Atwater
We present a general method for retrieving the effective tensorial permittivity of uniaxially anisotropic metamaterials. By relaxing the usually imposed constraint of assuming nonmagnetic metal/dielectric metamaterials, we also retrieve the effective permeability tensor and show that multilayer hype…
[Phys. Rev. B 91, 155406] Published Tue Apr 07, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.155406

Author(s): Hidehiro Asai, Sergey Savel'ev, Shiro Kawabata, and Alexandre M. Zagoskin
Electromagnetic pulse propagation in a quantum metamaterial, an 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, demo…
[Phys. Rev. B 91, 134513] Published Thu Apr 23, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.134513

Author(s): Salvatore Savo, You Zhou, Giuseppe Castaldi, Massimo Moccia, Vincenzo Galdi, Shriram Ramanathan, and Yuki Sato
We demonstrate an innovative multifunctional artificial material that combines exotic metamaterial properties and the environmentally responsive nature of phase-change media. The tunable metamaterial is designed with the aid of two interwoven coordinate-transformation equations and implemented with …
[Phys. Rev. B 91, 134105] Published Thu Apr 16, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.134105

Author(s): Pai-Yen Chen and Mohamed Farhat
[Phys. Rev. B 91, 159904] Published Mon Apr 13, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.159904

Author(s): Vincent Ginis, Philippe Tassin, Thomas Koschny, and Costas M. Soukoulis

In addition to its extraordinary mechanical, thermal and electrical properties, graphene shows great potential in manipulating electromagnetic fields. One of the main advantages of graphene compared to other materials is the extraordinary tunability of its conductivity, which can be achieved electrically by means of a back gate, or optically through the excitation of photocarriers. Scientists from Belgium, Sweden and the United States demonstrate that this tunability of graphene can be used in a novel setup for the generation of frequency combs. Traditionally, frequency combs are generated using nonlinear materials. The researchers studied the interaction between light and time-dependent graphene sheets, including both dispersion and explicit time-dependence of the conductivity. Based on this model, they demonstrated that frequency combs can be generated without material nonlinearities. Indeed, at terahertz frequencies it is possible to modulate the linear, time-dependent conductivity of graphene to obtain a large variety of frequency combs.

[Phys. Rev. B 91, 161403(R)] Published Wed Apr 08, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.161403

Author(s): Buddhi Rai and Arthur R. McGurn
Photonic crystal and split ring resonator (SRR) metamaterial waveguides with Kerr nonlinear dielectric impurities are studied. The transmission coefficients for two guided modes of different frequencies scattering from the Kerr impurities are computed. The systems are shown to exhibit multiple trans…
[Phys. Rev. B 91, 085113] Published Thu Feb 19, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.085113

Author(s): Guillaume Dupont, Olivier Kimmoun, Bernard Molin, Sebastien Guenneau, and Stefan Enoch
We propose a numerical and an experimental study of an invisibility carpet for linear water waves. In the first part, we introduce the concept of an invisibility carpet in the case of linear water waves and apply this concept for a bounded problem: a wavetank. In the second part, we study a simpler …
[Phys. Rev. E 91, 023010] Published Thu Feb 12, 2015

http://link.aps.org/doi/10.1103/PhysRevE.91.023010

Author(s): Diana Strickland, Arturo Ay'on, and Andrea Al`u
Based on Mie scattering theory, we derive the complete dynamic polarizability tensor for circular, azimuthally symmetric cylinders excited by an arbitrary field distribution, and provide compact expressions for all of its elements. Our results comprise fully dynamic cylinder polarizabilities, improv…
[Phys. Rev. B 91, 085104] Published Fri Feb 06, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.085104

Author(s): N. Lazarides, G. Neofotistos, and G. P. Tsironis
Regular lattices comprising superconducting quantum interference devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic multistability, and negative magnetic permeability. The SQUIDs in a metamaterial interact through nonlocal, magnetic dipole…
[Phys. Rev. B 91, 054303] Published Tue Feb 03, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.054303

Author(s): Chaohua Tan and Guoxiang Huang
We propose a scheme to realize stable propagation of linear and nonlinear surface polaritons (SPs) by placing a N-type four-level quantum emitters at the interface between a dielectric and a negative-index metamaterial (NIMM). We show that in linear propagation regime SPs can acquire an active Raman…
[Phys. Rev. A 91, 023803] Published Mon Feb 02, 2015

http://link.aps.org/doi/10.1103/PhysRevA.91.023803

Author(s): Wenlong Gao, Mark Lawrence, Biao Yang, Fu Liu, Fengzhou Fang, Benjamin B'eri, Jensen Li, and Shuang Zhang
Recently, the possibility of achieving one-way backscatter immune transportation of light by mimicking the topological properties of certain solid state systems, such as topological insulators, has received much attention. Thus far, however, demonstrations of nontrivial topology in photonics have re…
[Phys. Rev. Lett. 114, 037402] Published Thu Jan 22, 2015

http://link.aps.org/doi/10.1103/PhysRevLett.114.037402

Author(s): Yu. V. Bludov, D. A. Smirnova, Yu. S. Kivshar, N. M. R. Peres, and M. I. Vasilevskiy
We study nonlinear properties of multilayer metamaterials created by graphene sheets separated by dielectric layers. We demonstrate that such structures can support localized nonlinear modes described by the discrete nonlinear Schr"odinger equation and that its solutions are associated with stable di…
[Phys. Rev. B 91, 045424] Published Wed Jan 21, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.045424

Author(s): Pai-Yen Chen and Mohamed Farhat
We investigate the tunable and switchable optical radiators and metamaterials formed by metallic nanodipole antennas with submicroscopic gaps (1.2 nm), of which linear and third-order nonlinear quantum conductivities are observed due to the photon-assisted tunneling effect. The quantum conductivitie…
[Phys. Rev. B 91, 035426] Published Tue Jan 20, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.035426

Author(s): J. Liu and E. Narimanov
We develop a theoretical description of radiative thermal conductivity in hyperbolic metamaterials. We demonstrate a dramatic enhancement of the radiative thermal transport due to the supersingularity of the photonic density of states in hyperbolic media, leading to the radiative heat conductivity w…
[Phys. Rev. B 91, 041403(R)] Published Thu Jan 08, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.041403

Author(s): M. Dubois, E. Bossy, S. Enoch, S. Guenneau, G. Lerosey, and P. Sebbah
The flat-lens concept based on negative refraction proposed by Veselago in 1968 has been mostly investigated in the monochromatic regime. It was recently recognized that time development of the superlensing effect discovered in 2000 by Pendry is yet to be assessed and may spring surprises: Time-depe…
[Phys. Rev. Lett. 114, 013902] Published Tue Jan 06, 2015

http://link.aps.org/doi/10.1103/PhysRevLett.114.013902

Author(s): Shah Nawaz Burokur, Anatole Lupu, and Andr'e de Lustrac
This paper provides evidence for a direct dark mode excitation mechanism in a metasurface structure. The dark mode excitation mechanism is entirely determined by structures’ symmetry and does not depend on near-field coupling between elements. In our examples, we consider single-element based metasu…
[Phys. Rev. B 91, 035104] Published Mon Jan 05, 2015

http://link.aps.org/doi/10.1103/PhysRevB.91.035104

Author(s): Dimitrios C. Zografopoulos and Konstantinos P. Prokopidis

Using exotic subwavelength structures to conceal objects has generated sensational articles about “invisibility cloaks”, but there are more subtle applications as well. This study extends one cloaking technique from the usual free-space geometries to the guided-wave structures of optical communications circuitry. Nanoprobes in the light path of an integrated plasmonic circuit can be efficiently hidden, and although the cloaked objects do not disturb the flow of light, they nevertheless do interact with it. This permits the probes to exchange information with the outside world, and so cunningly these “invisibility cloaks” can be exploited to produce signal antennas or detectors.

[Phys. Rev. Applied 2, 064009] Published Tue Dec 23, 2014

http://link.aps.org/doi/10.1103/PhysRevApplied.2.064009

Author(s): Minseok Kim, Alex M. H. Wong, and George V. Eleftheriades

Surfaces that offer arbitrary control of reflected light have enormous implications in the field of nanophotonics. New metasurfaces consisting of gold nanorods are used to fully control the reflective properties of electromagnetic radiation.

[Phys. Rev. X 4, 041042] Published Tue Dec 09, 2014

http://link.aps.org/doi/10.1103/PhysRevX.4.041042