138. Rotation of director during holographic recording in polymer dispersed liquid crystals, H. Ono, N. R. Mohamad, T. Sasaki, N. Kawatsuki and A. Ogiwara, Liq. Cryst. 35 (2008) 633-639.


The formation of holographic polymer-dispersed liquid crystals was investigated in detail. The director was found to rotate during holographic recording owing to the change in morphology and migration of liquid crystals. A strongly anisotropic grating was constructed with variable diffraction efficiency that can be controlled by applying an analogue voltage to the nematic liquid crystal. Effects of post-curing on electro-optical properties were also investigated and the switching characteristics were strongly affected by the intermediate layer between the polymer and liquid crystal.

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