Results 101 to 110 of about 674 (191)

Arbitrary manipulations of dual harmonics and their wave behaviors based on space-time-coding digital metasurface

, 2020
Space-time modulated metasurfaces have attracted significant attention due to the additional degree of freedom in manipulating the electromagnetic (EM) waves in both space and time domains.
Jin Yang (86490), Qiang Cheng (389924), Ming Zheng Chen (17516637), Jun Chen Ke (17516640), Jun Yan Dai (17516631), Wankai Tang (17516634), Tie Jun Cui (655215), Shi Jin (641785)   +7 more
core   +1 more source

Coding metasurface to reduce RCS

, 2020
Reducing RCS is mainly relevant many militaries in the world as they seek to improve their stealth technology. There have been many methods that are created to reduce RCS, however these various methods have their limitations.
Ho, Desmond Zheng Nam
core   +1 more source

Focus control of wide-angle metalens based on digitally encoded metasurface

Opto-Electronic Advances
Based on the principle of super-symmetric lens with quadratic phase gradient transformation, combined with the principle of digital coding of metasurface, we propose a wide-angle coded metalens for focusing control in two-dimensional space. This metalens
Yi Chen, Simeng Zhang, Ying Tian, Chenxia Li, Wenlong Huang, Yixin Liu, Yongxing Jin, Bo Fang, Zhi Hong, Xufeng Jing   +9 more
doaj   +1 more source

Hilbert-Coding Metasurface for Diverse Electromagnetic Controls

, 2022
Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process.
Jianjiao Hao, Lei Chen, Haoyang Cui, Ruan, Ying, Fuju Ye, Ying Ruan, Chen, Lei, Hao, Jianjiao, Cui, Haoyang, Ye, Fuju   +9 more
core   +1 more source

Digital metasurface based on graphene: An application to beam steering in terahertz plasmonic antennas [PDF]

, 2019
Metasurfaces, the two-dimensional counterpart of metamaterials, have caught great attention thanks to their powerful capabilities on manipulation of electromagnetic waves.
Abadal Cavallé, Sergi, Alarcón Cot, Eduardo José, Hosseininejad, Seyed Ehsan, Cabellos Aparicio, Alberto, Rouhi, Kasra, Neshat, Mohammad   +5 more
core   +1 more source

Physics-driven unsupervised deep learning network for programmable metasurface-based beamforming

iScience
Summary: Programmable metasurfaces have garnered significant attention for their capacity to dynamically manipulate electromagnetic (EM) waves. In particular, the programmable metasurfaces offer to generate a wide range of EM beams when the appropriate ...
Jianghan Bao, Weihan Li, Siqi Huang, Wen Ming Yu, Che Liu, Tie Jun Cui   +5 more
doaj   +1 more source

Terahertz Information Metamaterials and Metasurfaces

Leida xuebao, 2018
In this paper, we review the recent developments on information metamaterials, including digital metamaterials, coding metamaterials, and programmable metamaterials; furthermore, we discuss their applications in the terahertz (THz)-frequency region.
Liu Junfeng, Liu Shuo, Fu Xiaojian, Cui Tiejun   +3 more
doaj   +1 more source

Space-Time-Coding Digital Metasurface Element Design Based on State Recognition and Mapping Methods with CNN-LSTM-DNN [PDF]

Space-time-coding digital metasurface has drawn worldwide attention with the ability to improve communication quality and change the direction of electromagnetic (EM) wave propagation in real time. This article proposes a deep-learning-assisted method to
Hong, Tao, Wang, Peng, Wei, Zhaohui, Li, Zhenning, Wu, Tong, Pedersen, Gert Frølund; id_orcid, Shen, Ming; id_orcid, Luo, Chao, Jiang, Wen   +8 more
core   +1 more source

Software‐Defined Terahertz Beam Manipulation via Active Light‐Controlled Frequency Coding Information Metasurface

Advanced Physics Research
The revolutionary breakthrough of information metasurfaces lies in their deep integration of physical and information spaces, enabling simultaneous electromagnetic wave manipulation and digital information processing.
Chao Zhao, Min Jia, Rong Lu, Yifan Ma, Gaole Fan, Qing Guo, Yanhong Tian, Siyuan Yu   +7 more
doaj   +1 more source

Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems

, 2018
Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing.
Cheng, Qiang, Ke, Jun Chen, Jin, Shi, Dai, Jun Yan, Alù, Andrea, Li, Xiang, Bai, Guo Dong, Cui, Tie Jun, Yang, Xi, Zhao, Jie, Qi, Ning Hua, Liu, Shuo   +11 more
core