1 July 1996 Digitization of interferograms of aspheric wavefronts
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Optical Engineering, 35(7), (1996). doi:10.1117/1.600766
Abstract
When digitizing an interferogram with a detector array, the sampling theorem requires the minimum local fringe spacing or period to be greater than twice the pixel separation. Thus, given a detector, there is a minimum fringe period that may be allowed.1,2 This minimum period, in turn, is set by the wavefront asphericity and the testing method.
Zacarias Malacara, Daniel Malacara-Hernandez, Manuel Servin Guirado, "Digitization of interferograms of aspheric wavefronts," Optical Engineering 35(7), (1 July 1996). https://doi.org/10.1117/1.600766
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KEYWORDS
Wavefronts

Aspheric lenses

Demodulation

Fringe analysis

Optical spheres

Chromatic aberrations

Interferometry

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