Results 71 to 80 of about 70,205 (364)

Hybrid Checkerboard Metasurface Combining Passive and Active AMCs [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, a hybrid checkerboard metasurface is proposed for controlling radar cross-sections (RCSs) using a small number of active devices. The proposed metasurface consists of passive and active artificial magnetic conductors.
Sung Hoe Kim, Donghyun Kim, Chang-Hyun Lee, Young Joong Yoon   +3 more
doaj   +1 more source

Cancer Diagnosis Using Terahertz-Graphene-Metasurface-Based Biosensor with Dual-Resonance Response

Nanomaterials, 2022
Owing to the outstanding physical properties of graphene, its biosensing applications implemented by the terahertz metasurface are widely concerned and studied.
Chunjian Tan, Shaogang Wang, Shizhen Li, Xu Liu, Jia Wei, Guoqi Zhang, Huaiyu Ye   +6 more
doaj   +1 more source

Electroelastic metasurface with resonant piezoelectric shunts for tunable wavefront control [PDF]

, 2022
This study presents a tunable phase-modulated metasurface composed of periodically distributed piezoelectric patches with resonant-type shunt circuits. The fully coupled electromechanical model is established to study the transmission characteristics of the metasurface unit and validated through numerical and experimental studies. Based on the analysis
arxiv   +1 more source

Metasurface-based key for computational imaging encryption

Science Advances, 2021
A single metasurface operates as a reusable generator of different keys to encode various secret images in a computational way. Optical metasurfaces can offer high-quality multichannel displays by modulating different degrees of freedom of light ...
Peixia Zheng, Q. Dai, Zile Li, Zhiyuan Ye, J. Xiong, Hong-Chao Liu, Guoxing Zheng, Shuang Zhang   +7 more
semanticscholar   +1 more source

Metasurface-Based Polarimeters [PDF]

Applied Sciences, 2018
The state of polarization (SOP) is an inherent property of light that can be used to gain crucial information about the composition and structure of materials interrogated with light. However, the SOP is difficult to experimentally determine since it involves phase information between orthogonal polarization states, and is uncorrelated with the light ...
Fei Ding, Yiting Chen, and Sergey I. Bozhevolnyi   +2 more
openaire   +4 more sources

Broadband generation of perfect Poincaré beams via dielectric spin-multiplexed metasurface

Nature Communications, 2021
The term Poincaré beam, which describes the space-variant polarization of a light beam carrying spin angular momentum (SAM) and orbital angular momentum (OAM), plays an important role in various optical applications.
Mingze Liu, P. Huo, Wenqi Zhu, Cheng Zhang, Shenmin Zhang, Maowen Song, Song Zhang, Qianwei Zhou, Lu Chen, H. Lezec, A. Agrawal, Yan-qing Lu, Ting Xu   +12 more
semanticscholar   +1 more source

Metasurfaces and their applications

Nanophotonics, 2018
AbstractMetasurfaces are a topic of significant research and are used in various applications due to their unique ability to manipulate electromagnetic waves in microwave and optical frequencies. These artificial sheet materials, which are usually composed of metallic patches or dielectric etchings in planar or multi-layer configurations with ...
Daniel F. Sievenpiper, Aobo Li, Shreya Singh   +2 more
openaire   +3 more sources

Design of Multifunctional Tunable Metasurface Assisted by Elastic Substrate

Nanomaterials, 2022
Metasurfaces with both multifunctionality and tunability hold great application potential in next-generation optical devices. In this paper, we propose a stretchable metasurface composed of arrays of identical dielectric rectangular resonators embedded ...
Jing Li, Hongjie Fan, Han Ye, Tiesheng Wu, Yuhang Sun, Xueyu Wang, Yumin Liu   +6 more
doaj   +1 more source

Plane-wave scattering by self-complementary metasurfaces in terms of electromagnetic duality and Babinet's principle [PDF]

Phys. Rev. B 88, 205138 (2013), 2013
We investigate theoretically electromagnetic plane-wave scattering by self-complementary metasurfaces. By using Babinet's principle extended to metasurfaces with resistive elements, we show that the frequency-independent transmission and reflection are realized for normal incidence of a circularly polarized plane wave onto a self-complementary ...
arxiv   +1 more source

Quasi-Periodic Dendritic Metasurface for Integral Operation in Visible Light

Molecules, 2020
A reflective metasurface model composed of silver dendritic units is designed in this study. The integral property of this metasurface, which consists of an upper layer of dendritic structures, a silica spacer, and a bottom silver substrate was ...
Huan Chen, Di An, Xiaopeng Zhao
doaj   +1 more source