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

页码：124 / 129

页数：6

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