90. Higher order diffraction from polarization gratings in photoreactive polymer liquid crystals, A. Emoto, H. Ono, N. Kawatsuki and E. Uchida, Jpn. J. Appl. Phys. 43 (2004) L293-L296.


Highly efficient polarization holographic gratings in photoreactive polymer liquid crystal films with azobenzene side groups have been prepared using two orthogonal linearly polarized beams with an off-resonant wavelength and subsequent annealing. The higher order diffracted beams were clearly observed in the diffraction patterns and the diffraction properties including higher order diffraction were well-explained by the diffraction theory.

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