Dynamics of local modes during nonradiative relaxation

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

Dynamics of local modes during nonradiative relaxation

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

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English (US)
Pages (from-to)	374-377
Number of pages	4
Journal	Physical Review Letters
Volume	78
Issue number	2
State	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

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title = "Dynamics of local modes during nonradiative relaxation",

abstract = "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.",

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

year = "1997",

language = "English (US)",

volume = "78",

pages = "374--377",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

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TY - JOUR

T1 - Dynamics of local modes during nonradiative relaxation

AU - Calistru, Dana M.

AU - Demos, S. G.

AU - Alfano, R. R.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

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M3 - Article

AN - SCOPUS:0002770571

VL - 78

SP - 374

EP - 377

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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Dynamics of local modes during nonradiative relaxation

Abstract

ASJC Scopus subject areas

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