Superspeckles: a new application of optical superresolution

被引:12
作者
Gundu, PN [1 ]
Hack, E
Rastogi, P
机构
[1] EMPA, Lab Elect Metrol, CH-8600 Dubendorf, Switzerland
[2] Ecole Polytech Fed Lausanne, IMAC, Appl Comp & Mech Lab, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1364/OPEX.13.006468
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The effect of optical superresolution on speckle correlations is studied. Simulations reveal that using a lateral superresolution pupil filter more than twice the out of plane correlation length of the clear pupil can be achieved. This means that the measurement range in speckle correlation measurements doubles. To verify the correlation length an experiment is performed using a liquid crystal (LCD) spatial light modulator as a programmable superresolution filter. The results corroborate the simulation. (c) 2005 Optical Society of America.
引用
收藏
页码:6468 / 6475
页数:8
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