期刊
JOURNAL OF APPLIED CRYSTALLOGRAPHY
卷 45, 期 -, 页码 778-784出版社
WILEY-BLACKWELL
DOI: 10.1107/S0021889812018900
关键词
three-dimensional quantitative imaging; coherent diffraction imaging; ptychography; zinc oxide
资金
- European Research Council [227711]
- US National Science Foundation [DMR-9724294]
- US Department of Energy, Office of Basic Energy Sciences [DE-AC0206CH11357]
- Engineering and Physical Sciences Research Council [EP/G068437/1, EP/F020767/1, EP/I022562/1] Funding Source: researchfish
- EPSRC [EP/I022562/1, EP/F020767/1, EP/G068437/1] Funding Source: UKRI
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 mu m-long arm of a ZnO tetrapod across a 1.3 mu m 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.
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