128. Effects of anchoring strength on diffraction properties of liquid crystal phase gratings formed on photo-alignment polymer films, H. Ono, S. Oikawa and N. Kawatsuki, J. Appl. Phys. 101 (2007) 123523.


The liquid crystal phase gratings were prepared using a polarization holographic exposure on poly(vinyl cinnamate) or photocross-linkable polymer liquid crystal (PCLC) films. Anchoring strength between the photoalignment layer and low-molar-mass liquid crystal is a very important role to realize the liquid crystal grating as a practical optical device. Anchoring strength of our PCLC film is sufficiently strong and optical properties of liquid crystal gratings were theoretically well explained assuming the strong anchoring.

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