New noise-suppression technique in photorefractive crystals

被引：19
|
作者：
Zhang, GQ
Liu, SM
Tian, GY
Xu, JJ
Sun, Q
Zhang, GY
机构：
[1] Department of Physics, Nankai University, Tianjin
来源：
APPLIED OPTICS | 1997年 / 36卷 / 08期
关键词：
photorefractive; noise suppression; time constant;
D O I：
10.1364/AO.36.001815
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
On the basis of the idea that signal gratings have a faster formation rate than noise gratings and signal gratings have a slower erasure rate than noise gratings under the same erasing beam, we report a new technique to suppress or eliminate the noise in image processing in photorefractive crystals. A general theoretical analysis and experimental results in LiNbO3:Fe crystals are given. (C) 1997 Optical Society of America.
引用
收藏
页码：1815 / 1819
页数：5
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