Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-323 - C7-326
DOI http://dx.doi.org/10.1051/jp4:1991786
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-323-C7-326

DOI: 10.1051/jp4:1991786

SPECTROSCOPIC PROPERTIES OF Ca-SUBSTITUTED GADOLINIUM GALLIUM GARNET DOPED WITH V4+

A. SUCHOCKI1, 2, A. BRENIER1, C. PEDRINI1 and G. BOULON1

1  URA 442 CNRS, University Lyon, 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne cedex, France
2  Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02-668 Warszawa, Poland


Abstract
The results of absorption, luminescence and luminescence excitation, fluorescence decay kinetics and photoconductivity measurements of Gd3Ga5O12 : V4+, Ca2+ (0.5% mol.) garnet are reported in detail. A strong quenching of the luminescence of V4+ ions in octahedral sites by the energy transfer to V4+ ions in tetrahedral sites is observed. Broad, strong bands observed in absorption and luminescence excitation spectra of octahedral V4+ ions in the ultraviolet region are assigned to small polarons bound at the V4+ ions in octahedral sites.



© EDP Sciences 1991