Results 21 to 30 of about 903 (183)

Flexibly control of vortex beams based on all-dielectric Pancharatnam-Berry phase transmission encoding metamaterials

Results in Physics, 2023
Because the ohmic loss of metal materials affects the transmission efficiency of metasurface, we design a transmission-type all-dielectric coded metasurface element structure based on the principle of Pancharatnam-Berry geometric phase.
Peng Zhang, Lan Ke, Bo Fang, Tianqi Zhao, Chenxia Li, Zhi Hong, Xufeng Jing   +6 more
doaj   +1 more source

A Four-leaf Clover-shaped Coding Metasurface For Ultra-wideband Diffusion-like Scattering

Leida xuebao, 2021
In this paper, a novel four-leaf clover-shaped coding metasurface is proposed and applied to achieve an ultra-wideband diffusion-like scattering.
Saifullah YASIR, Guomin YANG, Feng XU
doaj   +1 more source

Space-time-coding digital metasurfaces [PDF]

Nature Communications, 2018
AbstractThe recently proposed digital coding metasurfaces make it possible to control electromagnetic (EM) waves in real time, and allow the implementation of many different functionalities in a programmable way. However, current configurations are only space-encoded, and do not exploit the temporal dimension. Here, we propose a general theory of space-
Lei Zhang, Xiao Qing Chen, Shuo Liu, Qian Zhang, Jie Zhao, Jun Yan Dai, Guo Dong Bai, Xiang Wan, Qiang Cheng, Giuseppe Castaldi, Vincenzo Galdi, Tie Jun Cui   +11 more
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Dynamic RCS Reduction Performances of Antenna Array with Coding Metasurface

International Journal of Antennas and Propagation, 2022
On the basis of combining the two concepts of digital coding metasurface and metasurface antenna, low radar cross-section (RCS) coding metasurface antenna array with dynamic scattering performances is presented in this paper.
Yan Chen, Xiao-Xiang He, Yang Yang, Heng-Yan Hu, Fu-Kang Li, Lei Yang   +5 more
doaj   +1 more source

Representing Quantum Information with Digital Coding Metasurfaces [PDF]

Advanced Science, 2020
AbstractWith the development of science and technology, the way to represent information becomes more powerful and diversified. Recent research on digital coding metasurfaces has built an alternative bridge between wave‐behaviors and information science.
Guo Dong Bai, Tie Jun Cui
openaire   +3 more sources

Light‐Controllable Digital Coding Metasurfaces [PDF]

Advanced Science, 2018
AbstractSince the advent of digital coding metamaterials, a new paradigm is unfolded to sample, compute and program electromagnetic waves in real time with one physical configuration. However, one inconvenient truth is that actively tunable building blocks such as diodes, varactors, and biased lines must be individually controlled by a computer ...
Xin Ge Zhang, Wen Xuan Tang, Wei Xiang Jiang, Guo Dong Bai, Jian Tang, Lin Bai, Cheng‐Wei Qiu, Tie Jun Cui   +7 more
openaire   +2 more sources

Macroscopic model and statistical model to characterize electromagnetic information of a digital coding metasurface [PDF]

National Science Review
Jun Wei Wu, Qiang Cheng, Tie Jun Cui
exaly   +2 more sources

Digital Polarization Programmable Metasurface for Continuous Polarization Angle Rotation and Radar Applications

Frontiers in Materials, 2022
Polarization angle manipulation has been a vital technic in radar applications. This paper proposes and demonstrates a digital polarization programmable metasurface for continuous polarization angle rotation and radar applications.
Yidan Wang, Hongyu Shi, Hongyu Shi, Juan Chen, Jianjia Yi, Liang Dong, Anxue Zhang, Haiwen Liu   +7 more
doaj   +1 more source

Active Coding Piezoelectric Metasurfaces

, 2022
26 pages, 7 ...
Li, Zhaoxi, Fei, Chunlong, Yang, Shenghui, Hou, Chenxue, Zhao, Jianxin, Li, Yi, Zheng, Chenxi, Wu, Heping, Quan, Yi, Zhao, Tianlong, Chen, Dongdong, Li, Di, Niu, Gang, Ren, Wei, Xiao, Meng, Yang, Yintang   +15 more
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Suboptimal Coding Metasurfaces for Terahertz Diffuse Scattering [PDF]

Scientific Reports, 2018
AbstractCoding metasurfaces, composed of only two types of elements arranged according to a binary code, are attracting a steadily increasing interest in many application scenarios. In this study, we apply this concept to attain diffuse scattering at THz frequencies.
Moccia M., Koral C., Papari G. P., Liu S., Zhang L., Wu R. Y., Castaldi G., Cui T. J., Galdi V., Andreone A.   +9 more
openaire   +5 more sources