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Ultramicroscopy. 2012 Jul;118:21-5. doi: 10.1016/j.ultramic.2012.04.007. Epub 2012 May 11.

Improvement of the accuracy of phase observation by modification of phase-shifting electron holography.

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  • 1Advanced Science Institute, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan.

Abstract

We found that the accuracy of the phase observation in phase-shifting electron holography is strongly restricted by time variations of mean intensity and contrast of the holograms. A modified method was developed for correcting these variations. Experimental results demonstrated that the modification enabled us to acquire a large number of holograms, and as a result, the accuracy of the phase observation has been improved by a factor of 5.

Copyright © 2012 Elsevier B.V. All rights reserved.

PMID:
22728401
[PubMed - indexed for MEDLINE]
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