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Proceedings Paper

Fringe Formation Of Shearing Speckle Interferometry
Author(s): Jiabi Chen; F. P. Chiang
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Paper Abstract

Statistical approach is utilised to analyse the formation of displacement gradient fringes created by shearing speckle interferometry in this paper. We calculated the impulse response function and studied the spectrum of shearing specklegram in detail. Then the optical filtering system of shearography is analysed and we found that the cosine fringes are related to the displacement gradient upon condition that the displacement component along the X-axis, can be negleected, and the fringe visibility depends on the size of filtering holes and the in-plane displacement components.

Paper Details

Date Published: 17 February 1987
PDF: 5 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941684
Show Author Affiliations
Jiabi Chen, Huazhong University of Science and Technology (China)
F. P. Chiang, SUNY at Stony Brook (United States)

Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

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