82.	Highly stable polarization gratings in photo-cross-linkable polymer liquid crystals, H. Ono, A. Emoto, F. Takahashi, N. Kawatsuki and T. Hasegawa, J. Appl. Phys. 94 (2003) 1298-1303.

Abstract

Highly stable polarization gratings have been prepared in photocrosslinkable polymer liquid-crystal films by the use of two orthogonally polarized He?Cd laser beams and subsequent annealing. The resulting pure polarization gratings exhibiting thermal stability up to 150 °C diffract the beam and convert the polarization state at the same time according to the theoretical expectation.