1 October 2006 Cyclic-path digital speckle shear pattern interferometer: use of polarization phase-shifting method
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Optical Engineering, 45(10), 105604 (2006). doi:10.1117/1.2361194
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.
Basanta Bhaduri, Nandigana Krishna Mohan, Mahendra Prasad Kothiyal, "Cyclic-path digital speckle shear pattern interferometer: use of polarization phase-shifting method," Optical Engineering 45(10), 105604 (1 October 2006). http://dx.doi.org/10.1117/1.2361194
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KEYWORDS
Speckle

Interferometers

Polarization

Phase shifts

Speckle pattern

Fringe analysis

Optical engineering

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