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Molecular Crystals and Liquid Crystals Volume 541, 2011 - Issue 1: Proceedings of the 23rd International Liquid Crystal Conference (ILCC 2010) Part II of VIII
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Liquid Crystal Phases, Structures, Defects and Ordering (Cont.)

THz Optical Constants of the Liquid Crystal MDA-00-3461

Cheng-Pin Ku Department of Electrophyics, National Chiao Tung University, Hsinchu, Taiwan, R. O. C.
,
Chih-Chang Shih Department of Electrophyics, National Chiao Tung University, Hsinchu, Taiwan, R. O. C.
,
Chia-Jen Lin Department of Electrophyics, National Chiao Tung University, Hsinchu, Taiwan, R. O. C.
,
Ru-Pin Pan Department of Electrophyics, National Chiao Tung University, Hsinchu, Taiwan, R. O. C.Correspondence[email protected]
&
Ci-Ling Pan Department of Physics, National Tsing Hua University, Hsinchu, Taiwan, R. O. C.
Pages 65/[303]-70/[308] | Published online: 30 Jun 2011
 
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Abstract

We have measured the far infrared optical constants of MDA-00-3461 at 25°C by using terahertz time-domain spectroscopy. The extraordinary and ordinary refractive indices of MDA-00-3461 are ne  ≈ 1.74 and no  ≈ 1.54, or a birefringence of 0.20 from 0.3 to 1.4 THz. The extinction coefficient of MDA-00-3461 is relatively small. There are no absorption peaks in the frequency range investigated.

Acknowledgment

This work was partially supported by National Science Council, Republic of China, under grants 95-2218-E-007-119-MY3 and 96-2221-E-009-131-MY3.

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