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Opt Lett. 2003 May 15;28(10):801-3.

Phase retrieval for high-numerical-aperture optical systems.

Author information

1
Graduate Group in Biophysics, University of California, San Francisco, San Francisco, California 94143, USA.

Abstract

We describe a phase retrieval approach for intensity point-spread functions of high-numerical-aperture optical systems such as light microscopes. The method calculates a generalized pupil function defined on a spherical shell, using measured images at several defocus levels. The resultant pupil functionsreproduce measured point-source images significantly better than does an ideal imaging model. Availability of pupil function information will facilitate new approaches to aberration correction in such systems.

PMID:
12779151
DOI:
10.1364/ol.28.000801
[Indexed for MEDLINE]

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