Growth and spectra properties of Tm, Ho doped and Tm, Ho co-doped CaGdAlO4 crystals

被引：40

作者：

Di, Juqing ^{[1
,2
]}

Xu, Xiaodong ^{[3
]}

Xia, Changtai ^{[1
]}

Sai, Qinglin ^{[1
]}

Zhou, Dahua ^{[1
,2
]}

Lv, Zhengyong ^{[4
]}

Xu, Jun ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent & Optofunct Inorgan Mat, Shanghai 201800, Peoples R China

[4] Shanghai Univ, Sch Mat Sci & Engn, Dept Elect & Informat Mat, Shanghai 200072, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 155卷

基金：

中国国家自然科学基金;

关键词：

Optical materials; Crystal growth; Optical properties; Luminescence; SPECTROSCOPIC CHARACTERIZATION; ER3+; OPERATION; ENERGY;

D O I：

10.1016/j.jlumin.2014.06.010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Growth of Tm, Ho doped and Tm, Ho co-doped CaGdAlO4 crystals by Czochralski method are investigated for the first time. Tm:CaGdAlO4 crystal without any crack was obtained. The segregation coefficient and XRD were detected and the results revealed that the cell parameters decreased with increasing of the doping concentration. The absorption spectra, J-O parameters, emission spectra and fluorescence lifetime of were discussed. The absorption cross sections were calculated to be 0.61 x 10(-20) cm(2) and 1.49 x 10(-20) cm(2) at 793 nm and 798 nm for a polarization and c polarization of Tm:CaGdAlO4 crystal, and the stimulated emission cross-section was calculated to be 0.36 x 10(-20) cm(2) at 1762 nm. The stimulated emission cross-section of Ho:CaGdAlO4 crystal was calculated to be 1.18 x 10(-20) cm(2) at 2002 nm. The width of Tm,Ho:CaGdAlO4 emission band is almost 600 nm. The results show that Tm:CaGdAlO4, Ho:CaGdAlO4 and Tm,Ho:CaGdAlO4 crystals were excellent potential ultrafast laser media. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：101 / 107

页数：7

共 44 条

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