Nonradiative energy transfer from the impurity ion into the host lattice for Cr4+-doped forsterite laser crystal

V. A. Kremerman, M. Lax, S. G. Demos, Dana M. Calistru, R. R. Alfano

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A theoretical model explaining the nonradiative energy transfer from a photoexcited impurity ion into the lattice in a laser crystal is presented. The energy-transfer mechanism consists of electronic energy transfer to local vibrations that then dissipate their energy to lattice (phonon) modes of the same energy creating a nonequilibrium phonon population. The model explains the experimental temporal profiles of nonequilibrium optical phonons probed by time-resolved Raman scattering in Cr-doped forsterite laser crystal. The electronic transition time and relaxation lifetimes for phonon and for local modes are ∼3, 4, and 8 ps, respectively.

Original languageEnglish (US)
Pages (from-to)14391-14398
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number22
StatePublished - Dec 1 1997
Externally publishedYes

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forsterite
Crystal lattices
Energy transfer
energy transfer
Impurities
Ions
impurities
Crystals
Lasers
crystals
lasers
ions
Phonons
electronics
Raman scattering
phonons
Raman spectra
life (durability)
vibration
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Nonradiative energy transfer from the impurity ion into the host lattice for Cr4+-doped forsterite laser crystal. / Kremerman, V. A.; Lax, M.; Demos, S. G.; Calistru, Dana M.; Alfano, R. R.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 56, No. 22, 01.12.1997, p. 14391-14398.

Research output: Contribution to journalArticle

Kremerman, V. A. ; Lax, M. ; Demos, S. G. ; Calistru, Dana M. ; Alfano, R. R. / Nonradiative energy transfer from the impurity ion into the host lattice for Cr4+-doped forsterite laser crystal. In: Physical Review B - Condensed Matter and Materials Physics. 1997 ; Vol. 56, No. 22. pp. 14391-14398.
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