| Numéro |
J. Phys. Colloques
Volume 46, Numéro C7, Octobre 1985
Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
|
|
|---|---|---|
| Page(s) | C7-259 - C7-262 | |
| DOI | https://doi.org/10.1051/jphyscol:1985747 | |
Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
J. Phys. Colloques 46 (1985) C7-259-C7-262
DOI: 10.1051/jphyscol:1985747
Fysisch Laboratorium, Rijksuniversiteit Utrecht, P.O. Box 80.000 3508 TA Utrecht, The Netherlands
J. Phys. Colloques 46 (1985) C7-259-C7-262
DOI: 10.1051/jphyscol:1985747
NON-EQUILIBRIUM PHONONS IN OPTICALLY PUMPED YAG-Cr3+
R.J.G. Goossens, E.E. Koldenhof, J.I. Dijkhuis et H.W. de WijnFysisch Laboratorium, Rijksuniversiteit Utrecht, P.O. Box 80.000 3508 TA Utrecht, The Netherlands
Abstract
The optical generation and the dynamics of high-frequency phonons in diluted YAG : Cr3+ at 1.5 K are discussed. The experiments show severe bottlenecking of the 19.5-cm-1 phonons and surprisingly strong Raman processes induced by non-equilibrium very-high-frequency phonons.