Paper
12 December 1994 Errors in spatial phase-stepping techniques
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Katherine Creath and Joanna Schmit "Errors in spatial phase-stepping techniques", Proc. SPIE 2340, Interferometry '94: New Techniques and Analysis in Optical Measurements, (12 December 1994); https://doi.org/10.1117/12.195908
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CITATIONS
Cited by 11 scholarly publications.
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KEYWORDS
Phase shifts

Sensors

Phase measurement

Error analysis

Data processing

Detection and tracking algorithms

Wavefronts

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