期刊
APPLIED OPTICS
卷 61, 期 26, 页码 7558-7564出版社
Optica Publishing Group
DOI: 10.1364/AO.470274
关键词
-
类别
资金
- Natural Science Foundation of Shandong Province [ZR2020MF129]
- National Natural Science Foundation of China [12104044, 62075048]
This study proposes a reconfigurable anisotropic coding metasurface composed of a graphene layer and anisotropic Jerusalem-cross metallic layer for dynamic and complete multi-channel terahertz wavefront manipulation. By controlling the Fermi energy of graphene, continuous amplitude modulation is achieved for the coding elements. By arranging anisotropic phase coding elements with a specific coding sequence and changing the Fermi energy of graphene, the metasurface can dynamically control multi-channel reflection beams and manipulate the scattering pattern.
A reconfigurable anisotropic coding metasurface composed of a graphene layer and anisotropic Jerusalem-cross metallic layer is proposed for dynamic and complete multi-channel terahertz wavefront manipulation. By controlling the Fermi energy of graphene, continuous amplitude modulation is realized for the coding elements with certain phase responses. By arranging anisotropic phase coding elements with a specific coding sequence and changing the Fermi energy of graphene, the proposed metasurface can dynamically control multi-channel reflection beams with designed power distribution and simultaneously manipulate the scattering pattern from diffusion to mirror scattering under x- and y-polarized incidence, respectively. Compared with the dynamic phase modulation metasurface, such a tunable metasurface uses three degrees of freedom, including the polarization, phase, and amplitude responses to fully control the reflected wavefronts, which may have promising applications in tunable terahertz multi-functional holograms and multi-channel information communication. (c) 2022 Optica Publishing Group
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据