Photorefractive two-wave mixing in the presence of an incoherent beam

被引：3

作者：

Zhang, J ^{[1
]}

Wang, H ^{[1
]}

Yoshikado, S ^{[1
]}

Aruga, T ^{[1
]}

机构：

[1] Minist Posts & Telecommun, Commun Res Lab, Tokyo 1848795, Japan

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2000年 / 70卷 / 02期

关键词：

D O I：

10.1007/s003400050039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the numerical results of the photorefractive two-wave mixing in the presence of an incoherent beam by considering the influence of the ratios of the intensities and the light-excitation cross sections of the incoherent beam to the coherent beams on the space-charge field and the effective coupling coefficient. The results show that the incoherent beam can control the intensity of the coherent beams effectively. The experimental results agree with the theory well. One application is demonstrated to obtain the positive and negative coherent replicas of an incoherent image. The coherent images have a resolution of 80.6 line pairs/mm.

引用

页码：243 / 247

页数：5

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