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Proceedings Paper

Holography, speckle, and computers
Author(s): Ichirou Yamaguchi
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Paper Abstract

Fringe formations in holographic interferometry and speckle metrology are discussed in terms of correlation functions of randomly varying complex amplitude of light diffusely reflected from rough surface with the goal of surveying quantitative and automatic measurements by these methods. Dependencies of observed patterns on object deformation and optical systems are explained. Physical meanings of the derived relationships are explained in terms of dynamic behaviors of speckles resulting from surface deformation. Automatic measurements are described starting form analysis of fringe patterns resulting from photographic recording of specklgrams to digital recording of speckle patterns followed by direct digital correlation techniques and digital holography that uses both digital recording and reconstruction of holograms.

Paper Details

Date Published: 13 June 2001
PDF: 15 pages
Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); doi: 10.1117/12.429610
Show Author Affiliations
Ichirou Yamaguchi, RIKEN-The Institute of Physical and Chemical Research (Japan)

Published in SPIE Proceedings Vol. 4317:
Second International Conference on Experimental Mechanics
Fook Siong Chau; Chenggen Quan, Editor(s)

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