NDLI: Quadrature phase-shifting interferometer with a polarization imaging camera

Content Provider	Springer Nature Link
Author	Kiire, Tomohiro Yatagai, Toyohiko Nakadate, Suezou Shibuya, Masato
Copyright Year	2010
Abstract	We present a new high-speed phase distribution measurement, in which a polarization imaging camera is applied to a quadrature phase-shifting interferometer. The polarization imaging camera composed of a polarizer-mask on a detector array can provide simultaneously two phase-shifted data in quadrature. Two sets of two phase-shifted data in quadrature are obtained before and after a change of the interferometer such as object displacement or environmental disturbances. Phase sum and difference distributions of the interferograms between two states with arbitrary phase-shift in the interferometer are calculated with the two sets of two phase-shifted data in quadrature. This phase calculation method in the pixel displaced phase-shift method has such advantage that phase-shifted data required for the calculation of phase distributions can be obtained by only two pixels in the polarizer-mask detector array, which means no reduction of the image resolution in the other direction. The principle of this technique and experimental results are presented.
Starting Page	210
Ending Page	213
Page Count	4
File Format	PDF
ISSN	13406000
Journal	Optical Review
Volume Number	17
Issue Number	3
e-ISSN	13499432
Language	English
Publisher	Optical Society of Japan
Publisher Date	2010-06-05
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	interferometer phase shift phase calculation polarization polarizer-mask Physics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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