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High resolution x-ray characterization of periodically domain-inverted nonlinear optical crystals

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), A189-A194. (doi:10.1088/0022-3727/28/4A/037).

Record type: Article


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: 1995


Local EPrints ID: 78171
ISSN: 0022-3727
PURE UUID: 6b56ba24-a432-4027-b50f-0bbba26e1fa5

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:26

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Author: Z.W. Hu
Author: P.A. Thomas
Author: J. Webjörn

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