4T2→4A2 transition in the luminescence spectra of Mn4+ ion in gadolinium gallium garnet at intense laser pumping

被引：5
|
作者：
Bulyarskii, SV [1 ]
Zhukov, AV [1 ]
Prikhod'ko, VV [1 ]
机构：
[1] Ulyanovsk State Univ, Ulyanovsk 432700, Russia
来源：
JETP LETTERS | 2001年 / 74卷 / 11期
关键词：
78.55.−m;
D O I：
10.1134/1.1450287
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The Mn4+ T-4(2) --> (4)A(2) transition was observed in the luminescence spectrum of Gd3Ga5O12:Mn4+ at intense laser pumping. It is shown that the T-4(2) --> (4)A(2) transition becomes more intense than E-2 --> (4)A(2) because of an increase in the role of induced transitions with increasing pump power. This process is most efficient in the region of strongest overlap between the E-2 --> (4)A(2) and T-4(2) --> (4)A(2) bands, where it leads to strengthening of the zero-phonon line of the latter at 694 nm. It is assumed that GGG:Mn4+ can be used as an active material in tunable lasers. (C) 2001 MAIK "Nauka/Interperiodica".
引用
收藏
页码：543 / 546
页数：4
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