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A New Photorefractive Polymer/Liquid Crystal System
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LIU Hui 1;ZHANG Bo 1;GONG Qi-Huang 1;BAI Yao-Wen2;CHEN Xiao-Fang 2;WAN Xin-Hua2;ZHOU Qi-Feng2 |
1Department of Physics, State Key Laboratory for
Mesoscopic Physics, Peking University, Beijing 100871
2Department of Chemistry, Peking university, Beijing 100871
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Cite this article: |
LIU Hui, ZHANG Bo, GONG Qi-Huang et al 2001 Chin. Phys. Lett. 18 909-911 |
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Abstract The Photorefractive properties of PVK-based polymeric composites
doped with three liquid crystals, 4OCB (4-pertyloxy-4'-cyanobiphenyl ), 5OCB (4-pentyloxy-4'-cyanobiphenyl ), 8OCB (4-octyloxy-4'-cyanobiphenyl ) were investigated by using the two-beam coupling experiment at 633 nm. Gain coefficient over 34 cm -1 at an applied field of 60V/μm was observed. Among the three materials, the 8OCB-doped composite demonstrated a stronger orientational effect and the influence on charge field became apparent.
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Keywords:
42.65.Hw
52.70.Jk
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Published: 01 July 2001
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