Adaptive genetic algorithm for optical metasurfaces design

S Jafar-Zanjani, S Inampudi, H Mosallaei - Scientific reports, 2018 - nature.com
As optical metasurfaces become progressively ubiquitous, the expectations from them are
becoming increasingly complex. The limited number of structural parameters in the …

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 …

X-band phase-gradient metasurface for high-gain lens antenna application

H Li, G Wang, HX Xu, T Cai… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
We propose a high-gain transmitting lens antenna by employing layered phase-gradient
metasurface (MS). The MS is engineered to focus the propagating plane wave to a point with …

3-D printed millimeter-wave and terahertz lenses with fixed and frequency scanned beam

H Yi, SW Qu, KB Ng, CH Chan… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
High-gain and beam-scanning antennas are extremely important in the applications of
millimeter-wave (MMW) and terahertz (THz) technologies. Dielectric lens is a suitable …

Cavity-excited Huygens' metasurface antennas for near-unity aperture illumination efficiency from arbitrarily large apertures

A Epstein, JPS Wong, GV Eleftheriades - Nature communications, 2016 - nature.com
One of the long-standing problems in antenna engineering is the realization of highly
directive beams using low-profile devices. In this paper, we provide a solution to this …

Wave manipulation with designer dielectric metasurfaces

J Cheng, D Ansari-Oghol-Beig, H Mosallaei - Optics letters, 2014 - opg.optica.org
The concept of an ultra-thin metasurface made of single layer of only-dielectric disks for
successful phase control over a full range is demonstrated. Conduction loss is avoided …

Analog computing using graphene-based metalines

S AbdollahRamezani, K Arik, A Khavasi, Z Kavehvash - Optics letters, 2015 - opg.optica.org
We introduce the new concept of “metalines” for manipulating the amplitude and phase
profile of an incident wave locally and independently. Thanks to the highly confined …

Ultra-thin polarization beam splitter using 2-D transmissive phase gradient metasurface

T Cai, GM Wang, XF Zhang, JG Liang… - … on Antennas and …, 2015 - ieeexplore.ieee.org
A new 2-D ultra-thin transmissive phase gradient metasurface (TPGM) with polarization-
independent property is proposed based on the generalized Snell's law of refraction. The …

Dual-polarized reconfigurable metasurface for multifunctional control of electromagnetic waves

M Wang, D Liao, JY Dai… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This article presents a reconfigurable multifunctional metasurface (RMM) with independent
control of orthogonally polarized waves. Each meta-atom of RMM has four varactor diodes …

Helicity‐dependent multifunctional metasurfaces for full‐space wave control

C Zhang, G Wang, HX Xu, X Zhang… - Advanced Optical …, 2020 - Wiley Online Library
Full‐space manipulation of electromagnetic waves with a thin flat plate is particularly
intriguing for large‐angle scanning, functionality integration, and data capacity applications …