Automated phase retrieval of a single-material object using a single out-of-focus image.
Opt Lett
; 36(10): 1878-80, 2011 May 15.
Article
em En
| MEDLINE
| ID: mdl-21593921
ABSTRACT
Phase retrieval is widely used in phase contrast microscopy. Here we present an autofocus algorithm that allows the phase of the exit wave function, from a single-material object, to be reconstructed at medium resolution from a single phase contrast image without any a priori knowledge of the imaging system or object. The algorithm is demonstrated on coherent out-of-focus electron micrographs of 30 nm latex sphere calibration standards, giving <10% RMS error over a large defocus range.
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MEDLINE
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En
Ano de publicação:
2011
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Article