Control of Thermally Enhanced Photoinduced Reorientation Direction of Photocrosslinkable Copolymer Liquid Crystals and Application to Polarization Gratings Using Linearly Polarized Ultraviolet Light
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概要
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In this paper, we describe the thermally enhanced photoinduced reorientation behavior of copolymer liquid crystals, which comprise a methacrylate with 4-(4-methoxycinnamoyloxy)biphenyl (MCB) side groups and N-phenylmaleimide (PM), by irradiating with linearly polarized ultraviolet (LPUV) light and subsequent annealing. Adjusting the exposure energy controls the reorientation direction both perpendicular and parallel to the polarization of LPUV light. The generated birefringence is greater than 0.19 for both directions. A polarization grating with molecular orientation periodically modulated in orthogonal directions is fabricated using a grating photomask. The changes in the polarization of diffracted beams are similar to those of a polarization grating fabricated by a holographic technique.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-08-15
著者
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EMOTO Akira
Department of Electrical Engineering, Nagaoka University of Technology
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Matsuura Yasushi
Department Of Food Science Okayama Prefectural Junior College
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Kuwabara Masaomi
Department Of Materials Science And Chemistry University Of Hyogo
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Kawatsuki Nobuhiro
Department Of Applied Chemistry Himeji Institute Of Technology
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Ono Hiroshi
Department Of Agronomy Faculty Of Agriculture Tottori University
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Matsuura Yasushi
Department of Materials Science and Chemistry, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji 671-2201, Japan
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