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Open AccessArticle

Electrically Rotatable Polarizer Using One-Dimensional Photonic Crystal with a Nematic Liquid Crystal Defect Layer

Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-Cho, Matsuyama, Ehime 790-8577, Japan
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
Shimane Institute for Industrial Technology, Matsue, Shimane 690-0816, Japan
Author to whom correspondence should be addressed.
Academic Editor: Oleg D. Lavrentovich
Crystals 2015, 5(3), 394-404;
Received: 31 July 2015 / Revised: 4 September 2015 / Accepted: 10 September 2015 / Published: 14 September 2015
(This article belongs to the Special Issue Liquid Crystal Films)
Polarization characteristics of defect mode peaks in a one-dimensional (1D) photonic crystal (PC) with a nematic liquid crystal (NLC) defect layer have been investigated. Two different polarized defect modes are observed in a stop band. One group of defect modes is polarized along the long molecular axis of the NLC, whereas another group is polarized along its short axis. Polarizations of the defect modes can be tuned by field-induced in-plane reorientation of the NLC in the defect layer. The polarization properties of the 1D PC with the NLC defect layer is also investigated by the finite difference time domain (FDTD) simulation. View Full-Text
Keywords: liquid crystal; photonic crystal; polarization liquid crystal; photonic crystal; polarization
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Ozaki, R.; Ozaki, M.; Yoshino, K. Electrically Rotatable Polarizer Using One-Dimensional Photonic Crystal with a Nematic Liquid Crystal Defect Layer. Crystals 2015, 5, 394-404.

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