Tunable broadband THz absorber using vanadium dioxide metamaterials

被引：74
作者：
Bai, Jinjun [1 ]
Zhang, Shusheng [1 ]
Fan, Fei [2 ]
Wang, Shasha [1 ]
Sun, Xiaodong [1 ]
Miao, Yinping [3 ]
Chang, Shengjiang [2 ]
机构：
[1] Tianjin Polytech Univ, Sch Elect & Informat Engn, Tianjin Key Lab Optoelect Detect Technol & Syst, Int Res Ctr Photon, Tianjin 300387, Peoples R China
[2] Nankai Univ, Key Lab Opt Informat Sci & Technol, Minist Educ, Inst Modern Opt, Tianjin 300071, Peoples R China
[3] Tianjin Univ Technol, Sch Elect & Elect Engn, Tianjin Key Lab Film Elect & Communicate Devices, Tianjin 300384, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2019年 / 452卷
关键词：
THz; Metamaterials; Tunable; Vanadium dioxide; TERAHERTZ; FILTER;
D O I：
10.1016/j.optcom.2019.07.057
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A tunable broadband terahertz (THz) absorber is designed based on vanadium dioxide metamaterials. Numerical results shown that the bandwidth of absorption rate above 90% is 1.25 THz. The absorption rate can be continuously tuned from 15% to 96%, when vanadium dioxide transits from insulator phase to metal phase. In addition, the absorber has the advantages of polarization insensitive, wide-angle and quick response. May be applied to fields such as THz sensors, detectors and switches.
引用
收藏
页码：292 / 295
页数：4
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