| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|---|---|---|
| Page(s) | C6-502 - C6-504 | |
| DOI | https://doi.org/10.1051/jphyscol:19816147 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-502-C6-504
DOI: 10.1051/jphyscol:19816147
Institute of Physics, Estonian SSR Academy of Sciences, Tartu 202400, U.S.S.R.
J. Phys. Colloques 42 (1981) C6-502-C6-504
DOI: 10.1051/jphyscol:19816147
PHONON RELAXATION IN CRYSTALS STUDIED BY HOT LUMINESCENCE
P. Saari et K. RebaneInstitute of Physics, Estonian SSR Academy of Sciences, Tartu 202400, U.S.S.R.
Abstract
We have developed a method for studying phonon interactions in picosecond timescale, which manifest themselves in optical emission spectra. In sodium nitrite transition rates between high-frequency internal and lattice phonon states have been evaluated and their correlation with the order of anharmonicity has been observed. For anthracene the kinetics of vibron relaxation up to acoustic phonons has been revealed.