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Proceedings Paper

Errors in spatial phase-stepping techniques
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Paper Abstract

Spatial phase-measurement interferometry techniques are affected by a number of sources of error. This paper focuses on the major limitations for phase calculations using standard N- point algorithms. These limitations are having the wrong carrier frequency, unequally spaced fringes, detector nonlinearities, and variations in the dc fringe intensity. Computer simulations reveal the character and magnitude of these errors.

Paper Details

Date Published: 12 December 1994
PDF: 7 pages
Proc. SPIE 2340, Interferometry '94: New Techniques and Analysis in Optical Measurements, (12 December 1994); doi: 10.1117/12.195908
Show Author Affiliations
Katherine Creath, Optical Sciences Ctr./Univ. of Arizona (United States)
Joanna Schmit, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 2340:
Interferometry '94: New Techniques and Analysis in Optical Measurements
Malgorzata Kujawinska; Krzysztof Patorski, Editor(s)

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