Giant tunable Faraday effect in a semiconductor magneto-plasma for broadband terahertz polarization optics

被引：70

作者：

Arikawa, Takashi ^{[1
,2
]}

Wang, Xiangfeng ^{[1
,2
]}

Belyanin, Alexey A. ^{[3
]}

Kono, Junichiro ^{[1
,2
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[3] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 17期

基金：

美国国家科学基金会;

关键词：

QUARTER-WAVE PLATES; SPECTROSCOPY; RADIATION; LIMIT;

D O I：

10.1364/OE.20.019484

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on a giant Faraday effect in an electron plasma in n-InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as pi/2 and 1, respectively, over a wide frequency range (0.3-2.5 THz) at magnetic fields of a few Tesla. The experimental results together with theoretical simulations show its promising ability to construct broadband and tunable THz polarization optics, such as a circular polarizer, half-wave plate, and polarization modulators. (C) 2012 Optical Society of America

引用

页码：19484 / 19492

页数：9

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