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High-resolution three-dimensional partially coherent diffraction imaging

Clark, JN; Huang, X; Harder, R; Robinson, IK; (2012) High-resolution three-dimensional partially coherent diffraction imaging. Nature Communications , 3 , Article 993. 10.1038/ncomms1994. Green open access

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Abstract

The wave properties of light, particularly its coherence, are responsible for interference effects, which can be exploited in powerful imaging applications. Coherent diffractive imaging relies heavily on coherence and has recently experienced rapid growth. Coherent diffractive imaging recovers an object from its diffraction pattern by computational phasing with the potential of wavelength-limited resolution. Diminished coherence results in reconstructions that suffer from artefacts or fail completely. Here we demonstrate ab initio phasing of partially coherent diffraction patterns in three dimensions, while simultaneously determining the coherence properties of the illuminating wavefield. Both the dramatic improvements in image interpretability and the three-dimensional evaluation of the coherence will have broad implications for quantitative imaging of nanostructures and wavefield characterization with X-rays and electrons.

Type: Article
Title: High-resolution three-dimensional partially coherent diffraction imaging
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/ncomms1994
Publisher version: http://dx.doi.org/10.1038/ncomms1994
Language: English
Additional information: Copyright © 2012 Macmillan Publishers Limited. All rights reserved.
Keywords: Image Processing, Computer-Assisted, Nanostructures, X-Ray Diffraction
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/1355862
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