Rear-time binary-amplitude phase-only filters

被引：19
|
作者：
Moreno, I [1 ]
Ahouzi, E [1 ]
Campos, J [1 ]
Yzuel, MJ [1 ]
机构：
[1] UNIV AUTONOMA BARCELONA,DEPT FIS,GRP OPT,BELLATERRA 08193,SPAIN
来源：
APPLIED OPTICS | 1997年 / 36卷 / 29期
关键词：
pattern recognition; binary-amplitude phase-only filters; spatial light modulators;
D O I：
10.1364/AO.36.007428
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A real-time binary-amplitude phase-only filter (BAPOF) implemented in available phase-only modulators is presented. The BAPOF has an amplitude transmission equal to one only in a region of support, while the transmission is equal. to zero in the complementary region. To implement zero transmission in a phase-only modulator we propose to add a linear phase to the region of support. In this way the correlation desired is obtained off axis. Computer simulations and experimental results obtained with this technique are given. (C) 1997 Optical Society of America.
引用
收藏
页码：7428 / 7432
页数：5
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