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

doi:10.1063/1.115966

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 journal › Article › peer-review

9 Scopus citations

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 language	English (US)
Pages (from-to)	1195-1197
Number of pages	3
Journal	Applied Physics Letters
Volume	68
Issue number	9
DOIs	https://doi.org/10.1063/1.115966
State	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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.",

author = "Demos, {S. G.} and Calistru, {Dana M.} and Alfano, {R. R.}",

year = "1996",

doi = "10.1063/1.115966",

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T1 - Criterion for selecting phonons and local vibrations involved in the nonradiative relaxation of photoexcited Cr4+ ions in forsterite

AU - Demos, S. G.

AU - Calistru, Dana M.

AU - Alfano, R. R.

PY - 1996

Y1 - 1996

N2 - 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.

AB - 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.

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IS - 9

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

Abstract

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