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The relationship between glass structure and poling-induced optical second harmonic intensity for ZnO–TeO2 glasses

Published online by Cambridge University Press:  31 January 2011

Y. Shimizugawa  and
K. Hirao
Y. Shimizugawa
Affiliation:
Hirao active glass project, ERATO, JRDC, 15 Morimoto-cho, Shimogamo, Sakyo-ku Kyoto 606, Japan
K. Hirao
Affiliation:
Hirao active glass project, ERATO, JRDC, 15 Morimoto-cho, Shimogamo, Sakyo-ku Kyoto 606, Japan, and Division of Material Chemistry, Faculty of Engineering, Kyoto University, Sakyo-ku Kyoto 606–01, Japan
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Abstract

Local ordering around Te and Zn atoms of ZnO–TeO2 glass systems is investigated by Te K and Zn K EXAFS using synchrotron radiation. Tellurium K EXAFS results suggest the coordination states of tellurium atoms are changed from TeO4 trigonal bipyramids to TeO311 polyhedra or TeO3 trigonal pyramids with increasing of ZnO. Zinc K EXAFS results indicate that the Zn atom has the second oxygen shell which locates at the distance of 0.222–0.228 nm. The second harmonic intensity of the poled glass samples was also measured. The compositional dependence of the second harmonic intensity is explained in terms of the structural change of ZnO–TeO2 glass with the addition of ZnO.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 10 , October 1996 , pp. 2651 - 2655
Copyright
Copyright © Materials Research Society 1996

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