Abstract

We demonstrate the use of transverse translation-diverse phase retrieval as a method for the measurement of wavefronts in situations where the detected intensity patterns would be otherwise undersampled. This technique involves using a smaller moving subaperture to produce a number of adequately sampled intensity patterns. The wavefront is then retrieved using an optimization jointly constrained by them. Expressions for the gradient of an error metric with respect to the optimization parameters are given. An experimental arrangement used to measure the transmitted wavefront of a plano-convex singlet using this technique is described. The results of these measurements were repeatable to within approximately λ/100 RMS.

© 2009 Optical Society of America

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History
Original Manuscript: November 7, 2008
Manuscript Accepted: December 28, 2008
Revised Manuscript: December 23, 2008
Published: January 7, 2009

References

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Author Affiliations

Gregory R. Brady, Manuel Guizar-Sicairos, James R. Fienup

University of Rochester

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