Photorefractive optical processing: some proposals

被引:0
|
作者
Tebaldi, M [1 ]
Angel, L [1 ]
Bolognini, N [1 ]
机构
[1] CIC, CONICET, CIOp, RA-1900 La Plata, Argentina
关键词
D O I
10.1117/12.346778
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Some proposals on Lau and Talbot fringes formation based on a grating registered as birefringence modulation in a photorefractive crystal, will be presented. In the Talbot case, the stored grating can be replicated if read-out with coherent light. The system for the Lau arrangement behaves as a combination of an amplitude and a birefringence phase grating. In both cases, it is possible to control the visibility and to produce a contrast reversion of fringes by using an analyzer. Besides, Lau and Talbot interferometers based on the mentioned approach and their alternative experimental arrangements will be discussed.
引用
收藏
页码:173 / 181
页数:9
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