Polarization state measurement of terahertz electromagnetic radiation by three-contact photoconductive antenna

被引：58
|
作者：
Makabe, Hiroyuki [1 ]
Hirota, Yuichi [1 ]
Tani, Masahiko [1 ]
Hangyo, Masanori [1 ]
机构：
[1] Osaka Univ, Inst Laser Engn, Osaka 5650871, Japan
来源：
OPTICS EXPRESS | 2007年 / 15卷 / 18期
关键词：
D O I：
10.1364/OE.15.011650
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have fabricated a three-contact photoconductive antenna for the polarization-sensitive detection of terahertz electromagnetic radiation. Taking into account all three photoconductive signal current components, this three-contact photoconductive antenna can measure the polarization state of pulsed THz radiation at an accuracy comparable to that achieved using the conventional method which employs a set of wire-grid polarizers. The three-contact photoconductive receiver may be useful for polarization-sensitive spectroscopy such as vibrational circular dichroism spectroscopy and ellipsometry in the THz frequency region. (c) 2007 Optical Society of America.
引用
收藏
页码：11650 / 11657
页数：8
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