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Proceedings Paper

Suppression of fringe-modulating in-plane displacement fields in shearing speckle interferometry
Author(s): Tuck Wah Ng; Fook Siong Chau
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Paper Abstract

Shearing speckle interferometry using the wedge arrangement yields displacement derivative fringes that are modulated by in-plane displacement fields. In this paper, it is found that using a biprism instead of a wedge suppresses the in-plane displacement modulation effect without affecting the visibility of the displacement derivative fringes.

Paper Details

Date Published: 28 May 1993
PDF: 9 pages
Proc. SPIE 1821, Industrial Applications of Optical Inspection, Metrology, and Sensing, (28 May 1993); doi: 10.1117/12.145534
Show Author Affiliations
Tuck Wah Ng, National Univ. of Singapore (Singapore)
Fook Siong Chau, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 1821:
Industrial Applications of Optical Inspection, Metrology, and Sensing
Gordon M. Brown; Kevin G. Harding; H. Philip Stahl, Editor(s)

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