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Three-dimensional Bragg coherent diffraction imaging of an extended ZnO crystal

Huang, X; Harder, R; Leake, S; Clark, J; Robinson, I; (2012) Three-dimensional Bragg coherent diffraction imaging of an extended ZnO crystal. JOURNAL OF APPLIED CRYSTALLOGRAPHY , 45 778 - 784. 10.1107/S0021889812018900. Green open access

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Abstract

A complex three-dimensional quantitative image of an extended zinc oxide (ZnO) crystal has been obtained using Bragg coherent diffraction imaging integrated with ptychography. By scanning a 2.5 µm-long arm of a ZnO tetrapod across a 1.3 µm X-ray beam with fine step sizes while measuring a three-dimensional diffraction pattern at each scan spot, the three-dimensional electron density and projected displacement field of the entire crystal were recovered. The simultaneously reconstructed complex wavefront of the illumination combined with its coherence properties determined by a partial coherence analysis implemented in the reconstruction process provide a comprehensive characterization of the incident X-ray beam

Type: Article
Title: Three-dimensional Bragg coherent diffraction imaging of an extended ZnO crystal
Open access status: An open access version is available from UCL Discovery
DOI: 10.1107/S0021889812018900
Publisher version: http://dx.doi.org/10.1107/S0021889812018900
Additional information: © International Union of Crystallography. This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Keywords: three-dimensional quantitative imaging, coherent diffraction imaging, ptychography, zinc oxide
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/1353338
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