Criterion for selecting phonons and local vibrations involved in the nonradiative relaxation of photoexcited Cr4+ ions in forsterite

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

Research output: Contribution to journalArticle

Abstract

The energy of Cr4+ local modes and the energy and dynamics of Mg2SiO4 phonon modes involved in the nonradiative relaxation of photoexcited impurity Cr4+ ions in forsterite crystal were measured. The experimental results suggest that resonance in energy between local vibrations of the impurity ion and lattice (phonon) modes of the host crystal plays a crucial role in selecting the phonons which participate in the nonradiative relaxation of the photoexcited ions in crystals.

Original languageEnglish (US)
Pages (from-to)1195
Number of pages1
JournalApplied Physics Letters
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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