Upconversion luminescence of Er3+ in alkali bismuth gallate glasses

被引：153

作者：

Man, SQ ^{[1
]}

Pun, EYB ^{[1
]}

Chung, PS ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 04期

关键词：

D O I：

10.1063/1.127018

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Frequency upconversion of Er3+ in alkali bismuth gallate glasses have been investigated. The upconversion mechanisms are discussed, and the dominant mechanisms are excited state absorption for the H-2(11/2)-->I-4(15/2) and S-4(3/2)-->I-4(15/2) transitions, and energy transfer upconversion for the F-4(9/2)-->I-4(15/2) transition. Intense green (around 525-550 nm) and red (around 660 nm) emission bands were observed under 800 nm excitation. At a pump intensity of 15.6 W/cm(2), frequency upconversion efficiencies of 2.1x10(-2) and 4.8x10(-3) were obtained for the green and red emissions, respectively. The results are the highest among doped oxide glasses, and are comparable to those reported for Er3+/Yb3+ codoped fluoride glasses. (C) 2000 American Institute of Physics. [S0003-6951(00)04730-6].

引用

页码：483 / 485

页数：3

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