Open AccessBroadband dual-circular polarized coding metasurfaces and their powerful manipulation of differently circular polarizations
Author(s) -
Jiangfeng Han,
Xiangyu Cao,
Jun Gao,
Sijia Li,
Huanhuan Yang,
Chen Zhang,
Tong Li
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.034141
Subject(s) - broadband , optics , circular polarization , coding (social sciences) , physics , terahertz radiation , polarization (electrochemistry) , mathematics , microstrip , statistics , chemistry
In this paper, a concept of dual-circular polarized coding metasurface is proposed. Different from previous coding metasurfaces, it has independent and broadband coding behaviors for two circular polarized incidences. By encoding the unit cells with designed coding matrices (both 1-bit and 2-bit matrices), anomalous reflection or diffusion can be realized for two circular polarizations independently. The simulated and measured results demonstrate the independently functional performance of the coding metasurface. By adjusting sizes of unit cells, this concept can also be applied in terahertz and optical frequency regimes.