光折变晶体中图像放大的空间保真度。

Spatial fidelity of image amplification in photorefractive crystals.

作者信息

Xie P, Dai J H, Wang P Y, Zhang H J

出版信息

Appl Opt. 1996 Dec 20;35(36):7102-7. doi: 10.1364/AO.35.007102.

DOI:10.1364/AO.35.007102

Abstract

We numerically studied the spatial fidelity of coherent image amplification by two-wave mixing configurations in photorefractive BaTiO(3):Ce using a three-dimensional analysis. The results are given for the case when the input one-dimensional rectangular amplitude of the image-bearing extraordinary beam is finite in the plane of incidence and when the amplitude is finite in the orthogonal plane. The fidelity and the gain versus the angle between the propagating direction of the image-bearing beam and the crystal c axis, the pump-to-image intensity ratio, and the input beamwidth, are analyzed.

摘要

我们使用三维分析方法对光折变BaTiO(3):Ce中两波混频配置下相干图像放大的空间保真度进行了数值研究。给出了在承载图像的非常光光束的输入一维矩形振幅在入射平面内有限以及在正交平面内有限这两种情况下的结果。分析了保真度和增益与承载图像光束的传播方向和晶体c轴之间的夹角、泵浦光与图像光的强度比以及输入光束宽度的关系。