Study of asymmetric U-shaped resonator at terahertz frequencies

被引：8

作者：

Yang, Zhou ^{[1
]}

Zhou, Qingli ^{[1
]}

Long, Wen ^{[1
]}

Li, Chenyu ^{[1
]}

Shi, Yulei ^{[1
]}

Wu, Ani ^{[1
]}

Liu, Jianfeng ^{[2
]}

Zhang, Cunlin ^{[1
]}

机构：

[1] Capital Normal Univ, Dept Phys, Beijing Key Lab Terahertz Spect & Imaging, Key Lab Terahertz Optoelect,Minist Educ, Beijing 100048, Peoples R China

[2] Beijing 55 Middle Sch, Beijing 100027, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2016年 / 368卷

基金：

中国国家自然科学基金;

关键词：

Terahertz; Metamaterial; Electromagnetic resonance; METAMATERIALS;

D O I：

10.1016/j.optcom.2016.01.087

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the asymmetric U-shaped array exhibits different spectral patterns in response to incident terahertz wave with horizontal and vertical polarizations. In the horizontal incident polarization, where terahertz electric-field E-in is in parallel with the bottom bar of U-shaped structure, the two-absorption-dip transmission spectrum is similar to that of a typical split-ring resonator. When E-in is perpendicular to bottom bar, an interesting phenomenon comes up with three dips. This differs from the split-ring resonator which only has one dip in the transmission spectrum. The bottom-bar length also has significant impacts on frequency-shift and absorptive depth related to this resonant phenomenon. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：119 / 122

页数：4

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