Abstract

In field retrieval, the amplitude and phase of the generalized pupil function for an optical system are estimated from multiple defocused measurements of the system point-spread function. A baseline field reconstruction algorithm optimizing a data consistency metric is described. Additionally, two metrics specifically designed to incorporate a priori knowledge about pupil amplitude for hard-edged and uniformly illuminated aperture systems are given. Experimental results demonstrate the benefit of using these amplitude metrics in addition to the baseline metric.

© 2009 Optical Society of America

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History
Original Manuscript: September 17, 2008
Manuscript Accepted: January 19, 2009
Revised Manuscript: January 5, 2009
Published: February 27, 2009

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Author Affiliations

Samuel T. Thurman, Ryan T. DeRosa, James R. Fienup

University of Rochester

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