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Proceedings Paper

New principle for self-calibration techniques in phase-shift interferometry
Author(s): Adrian Dobroiu; Dan Apostol; Victor S. Damian; Victor Nascov
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Paper Abstract

A new self-calibration principle for phase shift interferometry is introduced, involving a whole-field consideration of the information contained by the interferograms. The principle is illustrated for the three-sample case, which was previously known as not having a self-calibration capability. Three related self- calibrating algorithms for phase shift interferometry are proposed, all of them based on this principle. The input of the algorithms is the set of three interferograms, and the output consists in both the correct phase shifts and the phase map of the wavefront being analyzed. No information on the actual phase shifts has to be supplied.

Paper Details

Date Published: 2 July 1998
PDF: 6 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312700
Show Author Affiliations
Adrian Dobroiu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Dan Apostol, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Victor S. Damian, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Victor Nascov, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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