Evaluation of interference patterns: a comparison of methods

Thomas M. Kreis; Juergen Geldmacher

doi:10.1117/12.57464

1 December 1991 Evaluation of interference patterns: a comparison of methods

Thomas M. Kreis, Juergen Geldmacher

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/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.

Citation Download Citation

Thomas M. Kreis and Juergen Geldmacher "Evaluation of interference patterns: a comparison of methods", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57464

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