Dynamics of local modes during nonradiative relaxation

Dana M. Calistru, S. G. Demos, R. R. Alfano

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


The direct participation of local modes in nonradiative processes taking place in impurity-doped laser crystals is investigated using time resolved resonance Raman scattering. The measured dynamics of the highest energy Cr4+ local mode in Cr:Mg2SiO4 shows that nonradiative relaxation proceeds via transfer of the nonequilibrium local mode population generated during the transition through an electronic bottleneck, to a select number of daughter phonons, and not directly, to the phonon continuum.

Original languageEnglish (US)
Pages (from-to)374-377
Number of pages4
JournalPhysical Review Letters
Issue number2
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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