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3 February 2009 Photorefractive effect of polymer-stabilized ferroelectric liquid crystals
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The photorefractive effect of polymer-stabilized ferroelectric liquid crystals (FLC) was investigated. Two-types of monomers, a liquid crystalline monomer and a photoconductive monomer, were mixed with an FLC and the mixtures were photopolymerized in the ferroelectric phase. The polymer-network was formed in the FLC medium and a polymer-stabilized FLC was obtained. The polymer-stabilized FLC exhibited monostable switching properties. The photorefractive effect was evaluated by a two-beam coupling experiment. It was found that the photorefractive effect was strongly dominated by the preparation condition of the polymer-stabilized FLCs. Large gain coefficients were obtained in the photoconductive-polymer-stabilized FLCs.
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Takeo Sasaki, Atsushi Katsuragi, Hirotada Hazato, and Yukihito Nakazawa "Photorefractive effect of polymer-stabilized ferroelectric liquid crystals", Proc. SPIE 7232, Emerging Liquid Crystal Technologies IV, 72320B (3 February 2009);

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