J. Phys. Colloques
Volume 46, Numéro C7, Octobre 1985Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
|Page(s)||C7-25 - C7-29|
J. Phys. Colloques 46 (1985) C7-25-C7-29
QUENCHING OF FLUORESCENCE BY CROSS RELAXATION INLaF3 : Pr3+G.P. Morgan, D.L. Huber et W.M. Yen
Department of Physics, University of Wisconsin, Madison, Wisconsin 53705, U.S.A.
The temporal dependence of the fluorescence from the 3P0 level in concentrated samples of LaF3 : Pr3+ has been modeled in terms of cross relaxation processes due to either short range superexchange or long range electric dipole-electric dipole ion pair interactions. Both models can be fitted to the observed data, however, it is concluded that the picture of a single dominant microscopic interaction is not sufficient to completely describe the macroscopic properties of the emission.