Theoretical explanations of the kinetics of scalar and vector holographic gratings are developed, and experimental results are obtained in amorphous AS2S3 thin films. The large nonlinear-optical susceptibilities are evaluated from experimental data in the vicinity of the fundamental absorption edge, and it is found that χ(3)1111 ≅ 3.2 × 10-2 esu and χ(3)1122/χ(3)1111 ≅ 0.98.
© 1988 Optical Society of America
C. H. Kwak, J. T. Kim, and S. S. Lee, "Scalar and vector holographic gratings recorded in a photoanisotropic amorphous As2S3 thin film," Opt. Lett. 13, 437-439 (1988)