SPECKLE METROLOGY WITH NOVELTY FILTERING USING PHOTOREFRACTIVE 2-BEAM COUPLING IN BATIO3 CRYSTAL

被引：22
|
作者：
LIU, LR [1 ]
HELMERS, H [1 ]
HINSCH, K [1 ]
机构：
[1] UNIV OLDENBURG,FACHBEREICH PHYS,W-2900 OLDENBURG,GERMANY
来源：
OPTICS COMMUNICATIONS | 1993年 / 100卷 / 1-4期
关键词：
D O I：
10.1016/0030-4018(93)90549-K
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two-beam coupling in BaTiO3 crystal is suggested for the tracking novelty filtering in speckle metrology. Two schemes are discussed: one for point measurement of displacement and another for full-field display. The processing is in real time and in line. The optimal conditions for a high contrast of fringes are introduced. Experimental results are given, too.
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页码：19 / 23
页数：5
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