Journal
OPTICS LETTERS
Volume 36, Issue 10, Pages 1878-1880Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.001878
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- Science Faculty, Monash University
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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 30nm latex sphere calibration standards, giving <10% RMS error over a large defocus range. (C) 2011 Optical Society of America
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