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

Basanta Bhaduri; Nandigana Krishna Mohan; Mahendra Prasad Kothiyal

doi:10.1117/1.2361194

1 October 2006 Cyclic-path digital speckle shear pattern interferometer: use of polarization phase-shifting method

Basanta Bhaduri, Nandigana Krishna Mohan, Mahendra Prasad Kothiyal

Author Affiliations +

Optical Engineering, Vol. 45, Issue 10, 105604 (October 2006). https://doi.org/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.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

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

Published: 1 October 2006

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