Fabrication, microstructure and laser performance of Yb3+ doped CaF2-YF3 transparent ceramics

Fabrication, microstructure and laser performance of Yb3+ doped CaF2-YF3 transparent ceramics
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Yb3掺杂CaF2-YF3透明陶瓷的制备、显微结构及激光性能

DOI:
10.1016/j.ceramint.2020.05.003
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发表时间:
2020-08
影响因子:
5.2
通讯作者:
Su Liangbi
Su Liangbi
中科院分区:
材料科学1区
文献类型:
--
作者:
Li Weiwei;Huang Haijun;Mei Bingchu;Wang Cong;Liu Jie;Wang Shaozhao;Jiang Dapeng;Su Liangbi

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Yb 3+:CaF 2透明陶瓷是一种性能优异的激光增益介质。考虑到Yb 3+离子在CaF 2基质中易形成团簇,本文的目的是研究Y3+离子掺杂对3at.% CaF 2基质的光谱性质的影响Yb 3+:CaF 2透明陶瓷。不同Y3+离子掺杂浓度(从1 at.%至6at.%)通过热压(HP)方法制备。研究了Y3+离子对陶瓷的晶体结构、颗粒形貌和显微结构的影响。有趣的是,随着Y3+离子浓度的增加,Yb 3+:CaF 2粉体的粒径逐渐减小,而1028 nm处的发光强度和寿命则先增大后减小。在3at%Yb3+,1at%Y3+:CaF 2陶瓷中获得了1049 nm的连续激光输出。最大输出功率为1.16 W,斜率效率为29.3%。据我们所知,这是第一次在Yb ~(3+):CaF_2-YF_3陶瓷中实现激光。
Yb3+: CaF2transparent ceramics are promising laser gain medium with outstanding performance. Considering Yb3+ions tend to form clusters in CaF2host, the aim of this paper was to investigate the influence of Y3+ions doping on the spectroscopic properties of 3 at.% Yb3+: CaF2transparent ceramics. High optical quality of Yb3+: CaF2-YF3samples doped with different Y3+ions concentrations (from 1 at.% to 6 at.%) were fabricated by hot-pressed (HP) method. The effect of Y3+ions on the crystal structure, morphology of the particles and microstructure of the ceramics were studied. Interestingly, the particle size of Yb3+: CaF2powders decreased with the increasing of Y3+ions concentrations, while the emission intensity at 1028 nm and lifetime first increased then decreased. Continuous-wave (CW) laser at the wavelength of 1049 nm was obtained in 3 at% Yb3+, 1 at%Y3+: CaF2ceramics. The maximum output power was 1.16 W with a slope efficiency of 29.3%. To the best of our knowledge, this is the first demonstration of laser in Yb3+: CaF2-YF3ceramics.
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