摘要
研究了碲酸盐玻璃中不同浓度Tm3+离子掺杂的发光特性,探讨了不同Tm3+离子浓度对发光强度的影响以及交叉弛豫的机理。通过测量不同浓度Tm2O3的3H4能级寿命,计算了Tm3+离子的交叉弛豫速率。结果表明,交叉弛豫速率随着Tm3+离子浓度的增加而迅速增大。Tm3+离子之间的交叉弛豫过程能有效地提高1.8μm发光强度。
The spectroscopic characteristics of Tm^3＋ tellurite-doped glasses have been investigated in the present paper. The influence of Tm^3＋ ions concentration on the intensity of 1.8 μm emission and the cross-relaxation mechanism are discussed. The cross-relaxation rates between the ^3H4→^3F4 and ^3H6→^3F4 were calculated via the measured lifetime of ^3H4. The results show that the rates increases sharply with the increase of Tm^3＋ ions concentration. The 1.8 μm emission intensity can be effectively improved through the cross-relaxation process.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2008年第1期85-88,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(50402007)
广东省科技攻关项目(2005A10602001)
教育部新世纪优秀人才项目(CNCET-04-0823)
