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Optical Engineering

Cyclic-path digital speckle shear pattern interferometer: use of polarization phase-shifting method
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Paper Abstract

A digital speckle shear pattern interferometer using a cyclic-path shear arrangement with a polarization phase-shifting method for the deformation-derivative measurement is presented. The cyclic-path arrangement, being a common path, improves the stability of the system. The proposed arrangement can be used to obtain the lateral as well as the radial slope contours. Experimental results on a centrally loaded diaphragm with its edge rigidly clamped, in lateral and radial speckle shear configurations, are presented.

Paper Details

Date Published: 1 October 2006
PDF: 6 pages
Opt. Eng. 45(10) 105604 doi: 10.1117/1.2361194
Published in: Optical Engineering Volume 45, Issue 10
Show Author Affiliations
Basanta Bhaduri, Indian Institute of Technology Madras (India)
Nandigana Krishna Mohan, Indian Institute of Technology Madras (India)
Mahendra Prasad Kothiyal, Indian Institute of Technology Madras (India)

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