Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
J. Phys. Colloques 46 (1985) C7-25-C7-29
DOI: 10.1051/jphyscol:1985705
QUENCHING OF FLUORESCENCE BY CROSS RELAXATION INLaF3 : Pr3+
G.P. Morgan, D.L. Huber et W.M. YenDepartment of Physics, University of Wisconsin, Madison, Wisconsin 53705, U.S.A.
Abstract
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.