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Proceedings Paper

Fluorescence and absorption probe of metal ion center in organically modified silicates
Author(s): Wieslaw Strek; J. Sokolnicki; B. Keller; M. Borzechowska; J. Legendziewicz
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Paper Abstract

An optical probe of structure of metal ion center in sol-gel systems based on the Eu3+ and Pr3+ emission and absorption measurements have been developed. It was tested how far the substrates affect the structure of metal centers in the glasses obtained by two different methods. Splitting of the levels, as well as their electronic transition probabilities at room and liquid nitrogen temperatures were used for considerations of the structure and symmetry of metal center. It was shown that the structure of metal centers was partially preserved up to 450 K. Correlation of the thermogravimetric measurements of substrates with the gels dried and heated up to 1100 K enables to control spectroscopically possible clustering processes occurring in sol-gel silicas. The effect of organic modification of water retention and dopant aggregation was investigated too.

Paper Details

Date Published: 1 November 1997
PDF: 6 pages
Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); doi: 10.1117/12.293458
Show Author Affiliations
Wieslaw Strek, Institute of Low Temperature and Structure Research (Poland)
J. Sokolnicki, Univ. of Wroclaw (Poland)
B. Keller, Univ. of Wroclaw (Poland)
M. Borzechowska, Univ. of Wroclaw (Poland)
J. Legendziewicz, Univ. of Wroclaw (Poland)

Published in SPIE Proceedings Vol. 3176:
Tunable Solid State Lasers
Wieslaw Strek; Edward Lukowiak; Barbara Nissen-Sobocinska, Editor(s)

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