Design of dual-band polarization controllable metamaterial absorber at terahertz frequency

被引：20
|
作者：
Wang, Ben-Xin [1 ]
He, Yuanhao [1 ]
Xu, Nianxi [2 ]
Wang, Xiaoyi [2 ]
Wang, Yanchao [2 ]
Cao, Jianjun [1 ]
机构：
[1] Jiangnan Univ, Sch Sci, Wuxi 214122, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Opt Syst Adv Mfg Technol, Changchun 130033, Peoples R China
来源：
RESULTS IN PHYSICS | 2020年 / 17卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Metamaterials; Dual-band absorption; Polarization controllable; Terahertz; PERFECT ABSORBER; METASURFACE;
D O I：
10.1016/j.rinp.2020.103077
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dual-band polarization controllable terahertz metamaterial absorber consisting of two horizontal metallic strips and two vertically connected metallic strips is demonstrated. Due to different strip lengths in the two orthogonal directions, two near-perfect absorption peaks are firstly obtained when the incident beam electric field is in the horizontal direction, while two new peaks are next realized when the electric field is selected along the vertical direction. The near-field distributions in two specific directions are provided to investigate the mechanism of polarization controllable dual-band absorption. Our research should have broad application prospects in the selection, control and utilization of polarization-based devices.
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页数：3
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