Share Email Print
cover

Proceedings Paper

Luminescence properties of Cr-doped silica sol gel glasses
Author(s): Wieslaw Strek; Edward Lukowiak; Przemyslaw J. Deren; K. Maruszewski; Ib Trabjerg; Czeslaw Koepke; G. E. Malashkevich; Vladimir E. Gaishun
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The emission of Cr-doped silica glass obtained by the sol- gel method is characterized by an orange broad band with a maximum at 610 nm. Its nature is examined by the absorption, excited state absorption, emission, excitation and lifetime measurements over a wide range of temperature and for different concentration of Cr ions. Our measurement show that in spite of fact that the absorption properties of Cr- doped silica sol-gel glass are predominantly associated with Cr4+ centers, the observed in visible range emission can be assigned neither to Cr3+ nor to Cr4+ ions. The discussion of the nature of observed emission was carried out for all possible valencies of the Cr ions. In conclusion is suggested that it may be ascribed to the transitions on the monovalent Cr1+ ion. The reducing agents occurring during the sol-gel process and leading to lowering the Cr valency are discussed.

Paper Details

Date Published: 1 November 1997
PDF: 6 pages
Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); doi: 10.1117/12.293455
Show Author Affiliations
Wieslaw Strek, Institute of Low Temperature and Structure Research (Poland)
Edward Lukowiak, Institute of Low Temperature and Structure Research (Poland)
Przemyslaw J. Deren, Institute of Low Temperature and Structure Research (Poland)
K. Maruszewski, Institute of Low Temperature and Structure Research (Poland)
Ib Trabjerg, Univ. of Copenhagen (Denmark)
Czeslaw Koepke, N. Copernicus Univ. (Poland)
G. E. Malashkevich, Institute of Molecular and Atomic Spectroscopy (Belarus)
Vladimir E. Gaishun, Institute of Molecular and Atomic Spectroscopy (Belarus)


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

© SPIE. Terms of Use
Back to Top