87.	Formation of pure polarization gratings in 4-methoxyazobenzene containing polymer films using off-resonant laser light, N. Kawatsuki, E. Uchida and H. Ono, Appl. Phys. Lett. 83 (2003) 4544-4546.

Abstract

Polarization holographic recordings in polymer liquid-crystal films with azobenzene side groups were investigated using two orthogonal linearly polarized 633 nm He-Ne laser beams and subsequent annealing. Although the electric transitions of the polymer material were almost off-resonant, stable pure polarization gratings were created with a first-order diffraction efficiency greater than 30%.