Energy transfer process in the rare-earth-ion-doped lead slicate glasses

被引：3
|
作者：
Dantas, NO [1 ]
Qu, FY [1 ]
机构：
[1] Univ Fed Uberlandia, Fac Fis, Lab Novos Mat Isolantes & Semicond, BR-38400902 Uberlandia, MG, Brazil
来源：
RARE-EARTH-DOPED MATERIALS AND DEVICES VI | 2002年 / 4645卷
关键词：
disordered-system; energy-transfer; phonon; photoluminescence; glass;
D O I：
10.1117/12.461663
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The Nd3+, Cr3+ single and codoped lead silicate glasses (SiO2-Na2O-Sb2O3-PbO2) were synthesized by means of fusion method. Their optical properties were studied by means of absorption and photoluminescence (PL), recorded at room temperature. The weak F-4(3/2) --> I-4(9/2) emission band centered at 890 nm observed in the Nd3+ single doped glasses was strongly enhanced in the Nd3+ and Cr3+ codoped glass. The effective mechanisms based on both direct donor-donor energy transfer processes assisted by localized phonons and energy cross-relaxation between donor-acceptor were proposed.
引用
收藏
页码：124 / 129
页数：6
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