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Proceedings Paper

Synthetic wavelength interferometry for the extension of the dynamic range
Author(s): Ulf Skudayski; Werner P. O. Jueptner
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Paper Abstract

The relative fringe order in a holographic interference pattern can be measured with high accuracy by means of methods like heterodyning or phase shifting. The determination of the absolute fringe order from the interferogram has not been solved satisfactorily. In this study, the absolute fringe order is determined through the employment of several wavelengths. Two interferograms are recorded with different wavelengths of a dye-laser. The mathematical treatment and an experimental application are reported.

Paper Details

Date Published: 1 October 1991
PDF: 5 pages
Proc. SPIE 1508, Industrial Applications of Holographic and Speckle Measuring Techniques, (1 October 1991); doi: 10.1117/12.47090
Show Author Affiliations
Ulf Skudayski, BIAS (Germany)
Werner P. O. Jueptner, BIAS (Germany)

Published in SPIE Proceedings Vol. 1508:
Industrial Applications of Holographic and Speckle Measuring Techniques
Werner P. O. Jueptner, Editor(s)

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