Two-step phase-shifting algorithm

Saul Almazan-Cuellar; Daniel Malacara-Hernandez

doi:10.1117/1.1625378

1 December 2003 Two-step phase-shifting algorithm

Saul Almazan-Cuellar, Daniel Malacara-Hernandez

Author Affiliations +

Optical Engineering, Vol. 42, Issue 12, (December 2003). https://doi.org/10.1117/1.1625378

Abstract

A novel two-step phase-shifting algorithm for use in detecting wavefront phase is presented. This algorithm is very insensitive to detuning. The short time needed to acquire and process interferograms helps to minimize phase errors caused by vibration, temperature effects, and nonlinear errors of the piezoelectric transducer. The rms error due to detuning does not change as in classical phase-shifting algorithms with respect to the selected ideal phase shift. The resulting wrapped phase is modulo 2π. Finally the phase error is analyzed.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Saul Almazan-Cuellar and Daniel Malacara-Hernandez "Two-step phase-shifting algorithm," Optical Engineering 42(12), (1 December 2003). https://doi.org/10.1117/1.1625378

Published: 1 December 2003

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