Electrically and thermally tunable multifunctional terahertz metasurface array

被引:13
|
作者
Wang, Yue [1 ,2 ]
Cui, Dajian [3 ]
Wang, Yu [1 ,2 ]
Yang, Guohui [4 ]
Wang, Chunhui [1 ,2 ]
机构
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Glint Inst Artificial Intelligence & Robot, Shenzhen 518063, Guangdong, Peoples R China
[3] China Elect Technol Grp Corp, Res Inst 44, Chongqing 400060, Peoples R China
[4] Harbin Inst Technol, Sch Elect & Informat Engn, Harbin 150001, Heilongjiang, Peoples R China
基金
中国国家自然科学基金;
关键词
POLARIZATION CONVERSION; LIQUID-CRYSTAL; GRAPHENE; METAMATERIAL; TRANSMISSION;
D O I
10.1103/PhysRevA.105.033520
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper we propose a kind of all-solid-state and a hybrid electrically and thermally tunable multifunctional metasurface array based on the graphene pattern and vanadium dioxide configuration, which can realize the functions of band-stop filtering, beam steering, and beam splitting. When VO2 is in the dielectric state, this metasurface can be used as an angle-insensitive filter that can realize the function of the dual-frequency adjustable band-stop filtering by changing the Fermi level of graphene in the range of 4.11-6.51 THz. When VO2 is in the metal state, this metasurface can be used as a terahertz phased array device. By changing the Fermi level of graphene and the phase distribution, it is proved that this metasurface can achieve a specific deflection angle, a continuous scanning range of 0-68.37 degrees, or beam splitting at angles of +/- 25.56 degrees and +/- 59.29 degrees. Our work shows great potential in the field of multifunctional integrated chips.
引用
收藏
页数:8
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