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Coherent x-ray diffraction imaging of ZnO nanostructures under confined illumination

Coherent x-ray diffraction imaging of ZnO nanostructures under confined illumination
Coherent x-ray diffraction imaging of ZnO nanostructures under confined illumination
Coherent x-ray diffraction imaging has been used to study a single ZnO nanorod in a confined illuminating condition. The focused beam size is smaller than the length of the nanorod, and the diffraction intensity is strongly dependent on the illumination position. The density maps show that the nanorod width in the radial direction is around 210 nm and has a length of 1.5 mu m, in agreement with the scanning electron microscope measurement. Reconstructed phase maps show a maximum phase change of 0.8 radians. The reconstructed direct space structures reveal the exit wavefront profile, which includes that of the focused x-ray beam. The beam profile presents in reconstructions some 'hill and valley' surface features with a typical size of a few tens of nanometres and are attributed to the noise due to the slow variation of the focused beam intensity along the boundary. A single ZnO tetrapod has been investigated with the same method to recover the beam profile in the horizontal direction.
1367-2630
033006-1 - 033006-11
Xiong, Gang
c8b84eb3-869c-4175-8cc4-1aaf3269332c
Huang, X.
7885f222-0af4-44d9-a839-393e2e3a8e3e
Leake, Steven J.
4a7e3727-00b4-46dc-934a-00ccdcecb17a
Newton, Marcus
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Harder, Ross
05fa0b22-abf6-4f59-9823-1748e879e27c
Robinson, Ian K.
ce840296-d065-463a-9986-573de845a081
Xiong, Gang
c8b84eb3-869c-4175-8cc4-1aaf3269332c
Huang, X.
7885f222-0af4-44d9-a839-393e2e3a8e3e
Leake, Steven J.
4a7e3727-00b4-46dc-934a-00ccdcecb17a
Newton, Marcus
fac92cce-a9f3-46cd-9f58-c810f7b49c7e
Harder, Ross
05fa0b22-abf6-4f59-9823-1748e879e27c
Robinson, Ian K.
ce840296-d065-463a-9986-573de845a081

Xiong, Gang, Huang, X., Leake, Steven J., Newton, Marcus, Harder, Ross and Robinson, Ian K. (2011) Coherent x-ray diffraction imaging of ZnO nanostructures under confined illumination. New Journal of Physics, 13, 033006-1 - 033006-11. (doi:10.1088/1367-2630/13/3/033006).

Record type: Article

Abstract

Coherent x-ray diffraction imaging has been used to study a single ZnO nanorod in a confined illuminating condition. The focused beam size is smaller than the length of the nanorod, and the diffraction intensity is strongly dependent on the illumination position. The density maps show that the nanorod width in the radial direction is around 210 nm and has a length of 1.5 mu m, in agreement with the scanning electron microscope measurement. Reconstructed phase maps show a maximum phase change of 0.8 radians. The reconstructed direct space structures reveal the exit wavefront profile, which includes that of the focused x-ray beam. The beam profile presents in reconstructions some 'hill and valley' surface features with a typical size of a few tens of nanometres and are attributed to the noise due to the slow variation of the focused beam intensity along the boundary. A single ZnO tetrapod has been investigated with the same method to recover the beam profile in the horizontal direction.

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More information

Published date: 2 March 2011

Identifiers

Local EPrints ID: 451657
URI: http://eprints.soton.ac.uk/id/eprint/451657
ISSN: 1367-2630
PURE UUID: 083186ae-8412-4961-99e2-169f6e533357
ORCID for Marcus Newton: ORCID iD orcid.org/0000-0002-4062-2117

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Date deposited: 18 Oct 2021 16:31
Last modified: 28 Oct 2021 01:46

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Contributors

Author: Gang Xiong
Author: X. Huang
Author: Steven J. Leake
Author: Marcus Newton ORCID iD
Author: Ross Harder
Author: Ian K. Robinson

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