Polarization phase-shifting Jamin shearing interferometer

被引:7
作者
Wang, Lijuan [1 ]
Liu, Liren [1 ]
Luan, Zhu [1 ]
Sun, Jianfeng [1 ]
Zhou, Yu [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
来源
OPTIK | 2010年 / 121卷 / 04期
关键词
Jamin shearing interferometer; Phase shifting; Polarization; Wavefront testing; WAVE-FRONT;
D O I
10.1016/j.ijleo.2008.07.023
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The Jamin shearing interferometer is very useful ill wavefront testing, especially for the low coherent light. Based oil this interferometer, 1,1 polarization phase-shifting Jamin shearing interferometer is proposed to improve the performance. In the interferometer, two interference beams are linearly polarized and a polarization phase shifter is applied to realize the phase shifting. Different types Of configurations of the interferometer are given. With phase-shifting interferograms. the precision of the interferometer can be Improved. The interferometer is kept as an equal optical path system and its shearing, amount remains changeable with simple Structure and easy operation. In experiments, phase-shifting interferograms are obtained by rotating the analyzer. The usefulness Of the interferometer is verified. (C) 2008 Elsevier GmbH. All rights reserved.
引用
收藏
页码:358 / 361
页数:4
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