Intense ultraviolet emission from Tb3+ and Yb3+ codoped glass ceramic containing CaF2 nanocrystals

被引：77

作者：

Huang, Lihui ^{[1
]}

Yamashita, Tatsuya ^{[1
]}

Jose, Rajan ^{[1
]}

Arai, Yusuke ^{[1
]}

机构：

[1] Toyota Technol Inst, Dept Future Ind Oriented Basic Sci & Mat, Tempaku Ku, Nagoya, Aichi 4688511, Japan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 13期

关键词：

D O I：

10.1063/1.2719028

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A transparent Tb3+ and Yb3+ codoped oxyfluoride glass ceramic containing CaF2 nanocrystals was developed. This glass ceramic showed an intense ultraviolet emission at 381 nm due to the (5)G(6), D-5(3)-> F-7(6) transitions of Tb3+ ion when excited with a 974 nm laser at room temperature. The observed intense ultraviolet emission could be attributed to the change of ligand field of Tb3+ and Yb3+ ions due to the incorporation of some Tb3+ and Yb3+ ions into CaF2 nanocrystals, and the resulting increased branching ratio of the transitions and longer lifetime of D-5(4) level of Tb3+ in the glass ceramic. (c) 2007 American Institute of Physics.

引用

页数：3

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