Comparative measurement by phase-shifting digital speckle interferometry using holographically generated reference wave

Nasser Moustafa; Janos Kornis; Zoltan Fuezessy

doi:10.1117/1.602171

1 July 1999 Comparative measurement by phase-shifting digital speckle interferometry using holographically generated reference wave

Nasser Moustafa, Janos Kornis, Zoltan Fuezessy

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Optical Engineering, Vol. 38, Issue 7, (July 1999). https://doi.org/10.1117/1.602171

A new method in digital speckle pattern interferometry is introduced. It is a two-stage process. In the first stage, two states (unloaded and loaded states) of the master object are recorded in a holographic plate using the usual holographic arrangement. In the second stage, various phase stepping algorithms are applied, using the reconstructed wavefronts of the master object as a holographic optical element to produce reference wave fields in the comparison process. The method is investigated, and its viability is demonstrated by experimental results and computer simulations.

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Nasser Moustafa, Janos Kornis, and Zoltan Fuezessy "Comparative measurement by phase-shifting digital speckle interferometry using holographically generated reference wave," Optical Engineering 38(7), (1 July 1999). https://doi.org/10.1117/1.602171

Published: 1 July 1999

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