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Molecular Crystals and Liquid Crystals Volume 507, 2009 - Issue 1: Proceedings of the 22nd International Liquid Crystal Conference (ILCC 2008) Part I of VI
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Original Articles

Some Characteristics of a Liquid-Crystal Phase Grating for THz Waves

Chia-Jen Lin Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
,
Chuan-Hsien Lin Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
,
Cho-Fan Hsieh Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
,
Ru-Pin Pan Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
,
Yu-Tai Li Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
&
Ci-Ling Pan Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan, Republic of ChinaCorrespondence[email protected]
Pages 114-121 | Published online: 05 Oct 2009
 
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Abstract

We propose and demonstrate an electrically controlled liquid crystal phase grating for the terahertz wave. The performance of the device was characterized by a terahertz time-domain spectrometer. The experimental results were in a good agreement with the prediction by classic diffraction theory.

Acknowledgments

This work was supported in part by the National Science Council grants NSC 95-2221-E-009-249, PPAEU-II and the ATU program of the Ministry of Education, Taiwan, Republic of China.

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