Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals: II. The case of YGG

M. Yamaga; B. Henderson; K. P. O'Donnell; G. Yue

doi:10.1007/BF00326013

Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals: II. The case of YGG

M. Yamaga, B. Henderson, K. P. O'Donnell, G. Yue

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Abstract

The coexistence of sharp R-lines from the ²E state and the broad band from the ⁴T₂ state in the photoluminescence spectra of Cr³⁺:Gd₃Sc₂Ga₃O₁₂ (GSGG) and Cr³⁺:Y₃Ga₅O₁₂ (YGG) is observed at low temperature (10K). The decay lifetimes of the broad emission bands of Cr³⁺ in GSGG and YGG are very close to those of the R-lines being, respectively, 0.23 ms and 2.5 ms. These results are explained in terms of the extent of the mixing of the ⁴T₂ vibronic wavefunction with that of the ²E lowest excited state by tunnelling.

Original language	English
Pages (from-to)	132-136
Number of pages	5
Journal	Applied Physics B Photophysics and Laser Chemistry
Volume	51
Issue number	2
DOIs	https://doi.org/10.1007/BF00326013
Publication status	Published - 1 Aug 1990

Keywords

garnet crystals
photoluminescence spectra
luminescence decay

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@article{21d2455e7ce94e8eac2d49831839883f,

title = "Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals: II. The case of YGG",

abstract = "The coexistence of sharp R-lines from the 2E state and the broad band from the 4T2 state in the photoluminescence spectra of Cr3+:Gd3Sc2Ga3O12 (GSGG) and Cr3+:Y3Ga5O12 (YGG) is observed at low temperature (10K). The decay lifetimes of the broad emission bands of Cr3+ in GSGG and YGG are very close to those of the R-lines being, respectively, 0.23 ms and 2.5 ms. These results are explained in terms of the extent of the mixing of the 4T2 vibronic wavefunction with that of the 2E lowest excited state by tunnelling.",

keywords = "garnet crystals, photoluminescence spectra, luminescence decay",

author = "M. Yamaga and B. Henderson and O'Donnell, {K. P.} and G. Yue",

year = "1990",

month = aug,

day = "1",

doi = "10.1007/BF00326013",

language = "English",

volume = "51",

pages = "132--136",

journal = "Applied Physics B - Photophysics and Laser Chemistry",

issn = "0721-7269",

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TY - JOUR

T1 - Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals

T2 - II. The case of YGG

AU - Yamaga, M.

AU - Henderson, B.

AU - O'Donnell, K. P.

AU - Yue, G.

PY - 1990/8/1

Y1 - 1990/8/1

N2 - The coexistence of sharp R-lines from the 2E state and the broad band from the 4T2 state in the photoluminescence spectra of Cr3+:Gd3Sc2Ga3O12 (GSGG) and Cr3+:Y3Ga5O12 (YGG) is observed at low temperature (10K). The decay lifetimes of the broad emission bands of Cr3+ in GSGG and YGG are very close to those of the R-lines being, respectively, 0.23 ms and 2.5 ms. These results are explained in terms of the extent of the mixing of the 4T2 vibronic wavefunction with that of the 2E lowest excited state by tunnelling.

AB - The coexistence of sharp R-lines from the 2E state and the broad band from the 4T2 state in the photoluminescence spectra of Cr3+:Gd3Sc2Ga3O12 (GSGG) and Cr3+:Y3Ga5O12 (YGG) is observed at low temperature (10K). The decay lifetimes of the broad emission bands of Cr3+ in GSGG and YGG are very close to those of the R-lines being, respectively, 0.23 ms and 2.5 ms. These results are explained in terms of the extent of the mixing of the 4T2 vibronic wavefunction with that of the 2E lowest excited state by tunnelling.

KW - garnet crystals

KW - photoluminescence spectra

KW - luminescence decay

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JO - Applied Physics B - Photophysics and Laser Chemistry

JF - Applied Physics B - Photophysics and Laser Chemistry

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