Manipulating terahertz wave by a magnetically tunable liquid crystal phase grating

被引：58

作者：

Lin, Chia-Jen ^{[1
]}

Li, Yu-Tai ^{[2
,3
]}

Hsieh, Cho-Fan ^{[1
]}

Pan, Ru-Pin ^{[1
]}

Pan, Ci-Ling ^{[2
,3
]}

机构：

[1] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30010, Taiwan

[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

[3] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 30010, Taiwan

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 05期

关键词：

D O I：

10.1364/OE.16.002995

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This investigation demonstrates the feasibility of a magnetically tunable liquid crystal phase grating for the terahertz wave. The phase grating can be used as a beam splitter. The ratio of the zeroth and first-order diffracted THz-beams (0.3 THz) polarized in a direction perpendicular to that of the grooves of the grating can be tuned from 4:1 to 1:2. When the THz wave is polarized in any other direction, this device can be operated as a polarizing beam splitter.

引用

页码：2995 / 3001

页数：7

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