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Nonlinear, single-distance phase retrieval and Schwinger regularization

✍ Scribed by Moosmann, Julian ;Hofmann, Ralf ;Baumbach, Tilo

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 364 KB
Volume: 208
Category: Article
ISSN: 0031-8965
DOI: 10.1002/pssa.201184267

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✦ Synopsis

Abstract

We apply an algorithm for phase retrieval from single‐distance data which takes nonlinear corrections into consideration in a perturbative way. Schwinger regularization is used for the inversion of the transverse Laplacian, and the applicability of the algorithm is demonstrated employing simulated data.

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A long distance alignment technique is developed using the combination of a single-mode optical ÿber and a phase plate. The characteristics of the di raction pattern of a Gaussian beam passing through a step phase plate are analyzed theoretically. The feasibility of the method is validated in theory