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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27714

Title: The Refractive Indices Nematic Liquid Crystal 4'-n-pentyl-4-cyanobiphenyl in the THz Frequency range
Authors: Ru-Pin Pan;Tsong-Ru Tsai;Chao-Yuan Chen;Chiung-Han Wang;Ci-Ling Pan
Contributors: NTOU:Institute of Optoelectronic Sciences
Keywords: 5cb;Birefringenc;Far Infrared;Liquid Crystal;Thz;Time-domain Spectroscopy
Date: 2004
Issue Date: 2011-10-21T02:33:06Z
Publisher: Molecular Crystals and Liquid Crystals
Abstract: Abstract:The terahertz (THz) refractive indices of a liquid crystal 4′-n-pentyl-4cyanobiphenyl (5CB) in both of the nematic and isotropic phases were determined by terahertz (THz) time-domain spectroscopy for the first time, to our knowledge. We find that the extinction coefficient of 5CB is negligibly small in this frequency range. The birefringence of 5CB, on the other hand, is as large as 0.2. This is comparable to that of 5CB in the visible and near IR. The experimental results indicate that liquid crystals are potentially useful for device applications in the THz frequency range.
Relation: 409(1), pp.137-144
URI: http://ntour.ntou.edu.tw/handle/987654321/27714
Appears in Collections:[光電科學研究所] 期刊論文

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