非晶态硫化砷（As₂S₃）薄膜中利用光致各向异性的二元相空间调制

Binary phase spatial modulation using photoinduced anisotropy in amorphous As(2)S(3) thin film.

作者信息

Kim H M, Jeong J W, Kwak C H, Lee S S

出版信息

Appl Opt. 1995 Sep 10;34(26):6008-11. doi: 10.1364/AO.34.006008.

DOI:10.1364/AO.34.006008

Abstract

We present a method for binary phase spatial modulation that uses photoinduced anisotropy in a chalcogenide amorphous As(2)S(3) thin film and its application to binary phase-only filters in a VanderLugt optical correlator. The time-dependent light-transmission properties of the photoilluminated As(2)S(3) thin film are analytically examined by use of third-order nonlinear polarization theory. Experimental results on optical correlation are discussed.

摘要

我们提出了一种利用硫族化物非晶态As(2)S(3)薄膜中的光致各向异性进行二值相位空间调制的方法，以及该方法在范德卢格特光学相关器中的二值纯相位滤波器上的应用。利用三阶非线性极化理论，对光照射的As(2)S(3)薄膜随时间变化的光传输特性进行了分析研究。并讨论了光学相关的实验结果。