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Phase error effect on contrast measurement in Schwider-Hariharan phase-shifting algorithm

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Abstract: Exact relationship due to linear phase error in contrast measurement in phase shifting interferometry using Schwider-Hariharan method has been obtained. Starting with five irradiance distributions, basic relationships for the contrast have been described.

Keywords: Phase-shifting interferometry; Schwider-Hariharan method; contrast; errors

Document Type: Miscellaneous


Affiliations: Center for Applied Optics, The University of Alabama in Huntsville, Huntsville, Alabama 35899, USA

Publication date: 2001-03-01

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