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.
| Language | English |
|---|---|
| Pages | 132-136 |
| Number of pages | 5 |
| Journal | Applied Physics B Photophysics and Laser Chemistry |
| Volume | 51 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Aug 1990 |
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Keywords
- garnet crystals
- photoluminescence spectra
- luminescence decay
Cite this
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Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals : II. The case of YGG. / Yamaga, M.; Henderson, B.; O'Donnell, K. P.; Yue, G.
In: Applied Physics B Photophysics and Laser Chemistry, Vol. 51, No. 2, 01.08.1990, p. 132-136.Research output: Contribution to journal › Article
TY - JOUR
T1 - Temperature dependence of the lifetime of Cr3+ luminescence in garnet crystals
T2 - Applied Physics B - Photophysics and Laser Chemistry
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
UR - http://www.scopus.com/inward/record.url?scp=0025476223&partnerID=8YFLogxK
U2 - 10.1007/BF00326013
DO - 10.1007/BF00326013
M3 - Article
VL - 51
SP - 132
EP - 136
JO - Applied Physics B - Photophysics and Laser Chemistry
JF - Applied Physics B - Photophysics and Laser Chemistry
SN - 0721-7269
IS - 2
ER -