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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 28 — Oct. 1, 2007
  • pp: 6872–6878

Hybrid iterative phase retrieval algorithm based on fusion of intensity information in three defocused planes

Fa Zeng, Qiaofeng Tan, Yingbai Yan, and Guofan Jin  »View Author Affiliations

Applied Optics, Vol. 46, Issue 28, pp. 6872-6878 (2007)

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Study of phase retrieval technology is quite meaningful, for its wide applications related to many domains, such as adaptive optics, detection of laser quality, precise measurement of optical surface, and so on. Here a hybrid iterative phase retrieval algorithm is proposed, based on fusion of the intensity information in three defocused planes. First the conjugate gradient algorithm is adapted to achieve a coarse solution of phase distribution in the input plane; then the iterative angular spectrum method is applied in succession for better retrieval result. This algorithm is still applicable even when the exact shape and size of the aperture in the input plane are unknown. Moreover, this algorithm always exhibits good convergence, i.e., the retrieved results are insensitive to the chosen positions of the three defocused planes and the initial guess of complex amplitude in the input plane, which has been proved by both simulations and further experiments.

© 2007 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Image Processing

Original Manuscript: April 2, 2007
Revised Manuscript: July 21, 2007
Manuscript Accepted: August 9, 2007
Published: September 21, 2007

Fa Zeng, Qiaofeng Tan, Yingbai Yan, and Guofan Jin, "Hybrid iterative phase retrieval algorithm based on fusion of intensity information in three defocused planes," Appl. Opt. 46, 6872-6878 (2007)

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