A matter of symmetry: terahertz polarization detection properties of a multi-contact photoconductive antenna evaluated by a response matrix analysis

被引：15

作者：

Niehues, Gudrun ^{[1
]}

Funkner, Stefan ^{[1
]}

Bulgarevich, Dmitry S. ^{[2
]}

Tsuzuki, Satoshi ^{[1
]}

Furuya, Takashi ^{[1
]}

Yamamoto, Koji ^{[1
]}

Shiwa, Mitsuharu ^{[2
]}

Tani, Masahiko ^{[1
]}

机构：

[1] Univ Fukui, Res Ctr Dev Far Infrared Reg, Fukui 9108507, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 12期

基金：

日本学术振兴会;

关键词：

TIME-DOMAIN SPECTROSCOPY;

D O I：

10.1364/OE.23.016184

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

While terahertz time domain spectroscopy (THz-TDS) is a well-established technique, polarization sensitive measurements are challenging due to the need of broadband polarization devices. Here, we characterize our recently introduced multi-contact photoconductive detector antenna with a response matrix analysis. We show that the lead lines attached to electrodes reduce the antenna symmetry and thereby influence the properties of the response matrices. With a wire grid polarizer, we simulate a sample influencing the polarization angle and the intensity of the incident THz pulse. Evaluating the measurements with the response matrix analysis, our results show a well agreement of the adjusted and measured polarization angles and intensities over a frequency range from 0.25 to 0.8 THz. (C) 2015 Optical Society of America

引用

页码：16184 / 16195

页数：12