Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-375 - C7-378
DOI http://dx.doi.org/10.1051/jp4:1991798
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-375-C7-378

DOI: 10.1051/jp4:1991798

CHROMIUM-NEODYMIUM ENERGY TRANSFER IN YAP

P.R. NELSON1, A. BRENIER1, C. PEDRINI1, G. BOULON1 and J.A. MARES2

1  Laboratoire de Physico-Chimie des Matériaux Luminescents, Unité de Recherche Associée au CNRS 442, Université Claude Bernard, Lyon I, F-69622 Villeurbanne cedex, France
2  Institute of Physics, Czechoslovak Academy of Sciences, Na Slovence 2, 18040 Prague 8, Czechoslovakia


Abstract
Yttrium aluminum perovskite (YAP) co-doped with Cr3+ and Nd3+ is of interest in laser applications because the chromium-neodymium energy transfer is more efficient in YAP than in YAG. Investigation of the energy transfer from the chromium R lines and pair states in the wavelength range 720-740 nm to the Nd3+ upper laser level shows that neither individual Cr3+ ions nor C3+-Cr3+ pairs are important energy donors in YAP. The results are consistent with a model of nonuniform distribution of donors.



© EDP Sciences 1991