Growth and Luminescence Properties of Tb3+ Ions Doped CaF2 Crystals

被引：0

作者：

Liu J. ^{[1
]}

Wang W.-D. ^{[1
]}

Song Q.-S. ^{[1
]}

Dong J.-S. ^{[1
]}

Xue Y.-Y. ^{[1
]}

Wang Q.-G. ^{[1
]}

Xu X.-D. ^{[2
]}

Su L.-B. ^{[3
]}

Xu J. ^{[1
]}

机构：

[1] School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai

[2] Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou

[3] State Key Laboratory of High-performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 11期

基金：

中国国家自然科学基金;

关键词：

J-O theory; spectral properties; Tb: CaF[!sub]2[!/sub; visible laser;

D O I：

10.37188/CJL.20220229

中图分类号：

学科分类号：

摘要：

A series of 10%Tb: x% Y: CaF2 (x = 0, 3, 5, 10) crystals have been successfully grown by the temperature gradient technique(TGT). The crystal structure was analyzed by X-ray diffraction, and the results showed that the high concentration of rare earth ion doping increased the unit cell parameters, but still maintained the fluorite cubic structure of CaF2. The absorption spectra, fluorescence spectra, and fluorescence decay curves were measured and analyzed at room temperature. By co-doping Y3+ ions, the spectral quality factor Ω4/Ω6 increased from 0. 75 to 0. 80. Using FL formula, the emission cross sections of 10%Tb: CaF2 were calculated to be 0. 89×10-21 cm2 and 0. 082×10-21 cm2 for the 545 nm and 587 nm, respectively, and the emission cross sections of 10% Tb, 10%Y: CaF2 were calculated to be 0. 89×10-21 cm2 and 0. 077×10-21 cm2 for the 545 nm and 587 nm. The fluorescence lifetime of 5D4 level is more than 5 ms, and there is no fluorescence lifetime quenching phenomenon caused by high concentration doping. The long fluorescence lifetime means that Tb3+ ion has excellent energy storage capacity. The experimental results show that Tb: CaF2 and Tb, Y: CaF2 crystals are gain mediums with great potential to realize visible laser output. © 2022 Chines Academy of Sciences. All rights reserved.

引用

页码：1750 / 1757

页数：7

共 24 条

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