ELECTRONICALLY RESONANT OPTICAL CROSS RELAXATION IN YAG-TB3+

被引：15

作者：

BODENSCHATZ, N ^{[1
]}

WANNEMACHER, R ^{[1
]}

HEBER, J ^{[1
]}

MATEIKA, D ^{[1
]}

机构：

[1] PHILIPS GMBH,W-2000 HAMBURG 54,GERMANY

来源：

JOURNAL OF LUMINESCENCE | 1990年 / 47卷 / 04期

关键词：

D O I：

10.1016/0022-2313(90)90027-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tb3+ ions in solids usually show a phonon-assisted optical cross 5D3-->5D4 and 7F6-->7F1,2. In the Y-Al-garnet (YAG) we encounter the very rare and interesting case of an electronically resonant process within the homogeneous widths of the involved crystal field levels. So direct phonon assistance is not needed. The time-resolved donor and acceptor fluorescences were analyzed by the Inokuti-Hirayama model. At low temperatures a dipole-quadrupole interaction was found to be responsible for the cross relaxation whereas at room temperature dipole-dipole interaction prevails. These findings are verified by the selection rules for the electronic transitions involved.

引用

页码：159 / 167

页数：9

共 12 条

[1]

[Anonymous], 1969, DATA REDUCTION ERROR

[2] CRYSTAL-FIELD ANALYSIS OF TB-3+ DOPED YTTRIUM-ALUMINUM-GARNET USING SITE-SELECTIVE POLARIZED SPECTROSCOPY [J].