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 KTiOPO<sub>4</sub> and LNbO<sub>3</sub>. Striations have been revealed in high strain-sensitivity multiple-crystal topo...

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Bibliographic Details
Main Authors: Hu, Z.W (Author), Thomas, P.A (Author), Webjörn, J. (Author)
Format: Article
Language:English
Published: 1995-04-14.
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Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Hu, Z.W.  |e author 
700 1 0 |a Thomas, P.A.  |e author 
700 1 0 |a Webjörn, J.  |e author 
245 0 0 |a High resolution x-ray characterization of periodically domain-inverted nonlinear optical crystals 
260 |c 1995-04-14. 
856 |z Get fulltext  |u https://eprints.soton.ac.uk/78171/1/929.pdf 
520 |a A high-resolution triple-axis diffractometer has been used for the structural characterization of periodically domain-inverted nonlinear optical crystals of KTiOPO<sub>4</sub> and LNbO<sub>3</sub>. 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 LiNbO<sub>3</sub> 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. 
655 7 |a Article