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Proceedings Paper

Spectral interferograms including equalization wavelengths processed by autoconvolution method
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Paper Abstract

The processing of the recorded spectral interferograms including the equalization wavelengths is extended by using autoconvolution method to determine the equalization wavelengths precisely. The equalization wavelength determination is used to estimate the spectral fringe phase function in a two-beam interference experiment with the compensated Michelson interferometer and an optical sample inserted in it under the knowledge of both dispersion in the interferometer and the displacement of the interferometer mirror. The interferometer dispersion is given by the thickness of fused-silica optical sample and its refractive index, which can be evaluated from the Sellmeier dispersion relation. Good agreement between the recorded and theoretical spectral interferograms is confirmed and a new method of determining the optical path differences between beams of the interferometer is proposed.

Paper Details

Date Published: 1 April 2003
PDF: 8 pages
Proc. SPIE 5064, Lightmetry 2002: Metrology and Testing Techniques Using Light, (1 April 2003); doi: 10.1117/12.501517
Show Author Affiliations
Petr Hlubina, Silesian Univ. Opava (Czech Republic)
Igor P. Gurov, St. Petersburg Institute of Fine Mechanics and Optics (Russia)


Published in SPIE Proceedings Vol. 5064:
Lightmetry 2002: Metrology and Testing Techniques Using Light
Maksymilian Pluta; Mariusz Szyjer, Editor(s)

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