High resolution x-ray characterization of periodically domain-inverted nonlinear optical crystals
High resolution x-ray characterization of periodically domain-inverted nonlinear optical crystals
A high-resolution triple-axis diffractometer has been used for the structural characterization of periodically domain-inverted nonlinear optical crystals of KTiOPO4 and LNbO3. Striations have been revealed in high strain-sensitivity multiple-crystal topographs of the domain-inverted regions of both these samples and these are dominated by orientation contrast. The combination of high-resolution reciprocal-space mapping and topography has shown that the extended diffraction streak in the q[210] direction for domain-inverted LiNbO3 originates from the "minutely misoriented structure" which is related to the original configuration of dislocations. The reason for the generation of the structural imperfections via the domain-inversion processing is interpreted in terms of the converse piezoelectric effect.
A189-A194
Hu, Z.W.
61b9c7ba-82f5-46e7-b841-bbcd7f9b5aac
Thomas, P.A.
63105350-ea12-4690-8184-e9da00a6fb28
Webjörn, J.
f3ef0aa0-86f5-4323-ab51-ac54fb43d0ac
14 April 1995
Hu, Z.W.
61b9c7ba-82f5-46e7-b841-bbcd7f9b5aac
Thomas, P.A.
63105350-ea12-4690-8184-e9da00a6fb28
Webjörn, J.
f3ef0aa0-86f5-4323-ab51-ac54fb43d0ac
Hu, Z.W., Thomas, P.A. and Webjörn, J.
(1995)
High resolution x-ray characterization of periodically domain-inverted nonlinear optical crystals.
Journal of Physics D: Applied Physics, 28 (4A), .
(doi:10.1088/0022-3727/28/4A/037).
Abstract
A high-resolution triple-axis diffractometer has been used for the structural characterization of periodically domain-inverted nonlinear optical crystals of KTiOPO4 and LNbO3. Striations have been revealed in high strain-sensitivity multiple-crystal topographs of the domain-inverted regions of both these samples and these are dominated by orientation contrast. The combination of high-resolution reciprocal-space mapping and topography has shown that the extended diffraction streak in the q[210] direction for domain-inverted LiNbO3 originates from the "minutely misoriented structure" which is related to the original configuration of dislocations. The reason for the generation of the structural imperfections via the domain-inversion processing is interpreted in terms of the converse piezoelectric effect.
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Published date: 14 April 1995
Identifiers
Local EPrints ID: 78171
URI: http://eprints.soton.ac.uk/id/eprint/78171
ISSN: 0022-3727
PURE UUID: 6b56ba24-a432-4027-b50f-0bbba26e1fa5
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:07
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Author:
Z.W. Hu
Author:
P.A. Thomas
Author:
J. Webjörn
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