Bianisotropic metasurfaces: physics and applications

VS Asadchy, A Díaz-Rubio, SA Tretyakov - Nanophotonics, 2018 - degruyter.com
Metasurfaces as optically thin composite layers can be modeled as electric and magnetic
surface current sheets flowing in the layer volume in the metasurface plane. In the most …

Theory of metasurface based perfect absorbers

R Alaee, M Albooyeh, C Rockstuhl - Journal of Physics D …, 2017 - iopscience.iop.org
Based on an analytic approach, we present a theoretical review on the absorption,
scattering, and extinction of both dipole scatterers and regular arrays composed of such …

Metagratings: Beyond the limits of graded metasurfaces for wave front control

Y Ra'di, DL Sounas, A Alù - Physical review letters, 2017 - APS
Graded metasurfaces exploit the local momentum imparted by an impedance gradient to
mold the impinging wave front. This approach suffers from fundamental limits on the overall …

Perfect control of reflection and refraction using spatially dispersive metasurfaces

VS Asadchy, M Albooyeh, SN Tcvetkova, A Díaz-Rubio… - Physical Review B, 2016 - APS
Nonuniform metasurfaces (electrically thin composite layers) can be used for shaping
refracted and reflected electromagnetic waves. However, known design approaches based …

An electromagnetic multipole expansion beyond the long-wavelength approximation

R Alaee, C Rockstuhl, I Fernandez-Corbaton - Optics Communications, 2018 - Elsevier
The multipole expansion is a key tool in the study of light–matter interactions. All the
information about the radiation of and coupling to electromagnetic fields of a given charge …

Tutorial on electromagnetic nonreciprocity and its origins

VS Asadchy, MS Mirmoosa, A Díaz-Rubio… - Proceedings of the …, 2020 - ieeexplore.ieee.org
This tutorial provides an intuitive and concrete description of the phenomena of
electromagnetic nonreciprocity that will be useful for readers with engineering or physics …

Huygens' metasurfaces via the equivalence principle: design and applications

A Epstein, GV Eleftheriades - JOSA B, 2016 - opg.optica.org
We review the current trends in the design of Huygens' metasurfaces (HMSs), which are
planar arrays of balanced electric and magnetic polarizable particles (meta-atoms) of …

Arbitrary power-conserving field transformations with passive lossless omega-type bianisotropic metasurfaces

A Epstein, GV Eleftheriades - IEEE Transactions on Antennas …, 2016 - ieeexplore.ieee.org
We present a general theory for designing realistic omega-type bianisotropic metasurfaces
(O-BMSs), unlocking their full potential for molding electromagnetic fields. These …

A generalized Kerker condition for highly directive nanoantennas

R Alaee, R Filter, D Lehr, F Lederer, C Rockstuhl - Optics letters, 2015 - opg.optica.org
A nanoantenna with balanced electric and magnetic dipole moments, known as the first
Kerker condition, exhibits a directive radiation pattern with zero backscattering. In principle …

Realization of low scattering for a high-gain Fabry–Perot antenna using coding metasurface

L Zhang, X Wan, S Liu, JY Yin, Q Zhang… - … on Antennas and …, 2017 - ieeexplore.ieee.org
We present a novel method to design a conventional Fabry–Perot (FP) antenna but with low
scattering. Combining a coding metasurface and an FP antenna together could effectively …