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Opt Lett. 2008 Feb 15;33(4):309-11.

Phase retrieval using multiple illumination wavelengths.

Author information

  • 1Institut für Technische Optik, Universität Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany.

Abstract

An iterative phase retrieval method is proposed, which uses a sequence of diffraction intensity patterns recorded at different wavelengths. This method has a rapid convergence, and a high immunity to noise and environmental disturbance. The wrap-free phase measurement range is also extended based on the principle of two-wavelength interferometry. Simulation and experimental results are presented to demonstrate the approach.

PMID:
18278093
[PubMed - indexed for MEDLINE]
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