1 December 1991 Evaluation of interference patterns: a comparison of methods
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Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991); doi: 10.1117/12.57464
Event: San Diego, '91, 1991, San Diego, CA, United States
Abstract
Methods for determination of the interference phase distributions from interference patterns are presented and the most important methods, which are fringe tracking, temporal heterodyning, phase shifting and Fourier transform evaluation are compared with regard to experimental requirements, achievable resolution and precision, as well as inherent noise suppression and image enhancement. The comparison shows: whenever phase shifting is possible, it is the best choice. If only one interference pattern is offered, Fourier transform evaluation is recommendable.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas M. Kreis, Juergen Geldmacher, "Evaluation of interference patterns: a comparison of methods", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57464; https://doi.org/10.1117/12.57464
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KEYWORDS
Phase shifts

Fourier transforms

Heterodyning

Phase shifting

Interferometry

Holographic interferometry

Moire patterns

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