Enhanced 2.7μm continuous -wave emission of Er,Pr:Lu2O3 crystal
Enhanced 2.7μm continuous -wave emission of Er,Pr:Lu2O3 crystal
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Er,Pr:Lu2O3 晶体的增强型 2.7μm 连续波发射
DOI：
10.1016/j.jlumin.2020.117094
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发表时间：
2020
影响因子：
3.6
通讯作者：
Xu Jun
中科院分区：
文献类型：
--
作者：
Hou Wentao;Xu Zian;Zhao Hengyu;Li Na;Xue Yanyan;Wang Qingguo;Xu Xiaodong;Xu Jun
采用浮区法生长了高光学质量的Er：Lu2O3和Er，Pr：Lu2O3晶体。研究了Er：Lu2O3和Er，Pr：Lu2O3晶体的光谱性质。在低浓度Pr3+共掺杂后，Pr3+对近红外发射的去布居影响远大于对MIR发射的影响。近红外和上转换荧光被显著猝灭。此外，在7%Er，0.05%Pr：Lu2O3晶体中，4I13/2的荧光寿命从4.02ms下降到1.71ms，寿命比为1.63，较大的荧光寿命为4I11/2，这是这些晶体中理想的寿命比。因此，通过共掺杂0.05at.%的Pr3+可以显著改善光谱性能。7%Er，0.05%Pr：Lu2O晶体在2.7Kμm处的高激光性能是可以预期的。
The high optical quality Er:Lu2O3and Er,Pr:Lu2O3crystals were grown by Floating zone method. The spectral properties of Er:Lu2O3and Er,Pr:Lu2O3crystals were investigated. After co-doping small concentration of Pr3+, the depopulated influence of Pr3+to the NIR emission was much stronger than the MIR emission. The near-infrared and up-conversion fluorescence were significantly quenched. Moreover, the fluorescence lifetime of4I13/2abviously decreases from 4.02 ms to 1.71 ms in 7% Er, 0.05% Pr: Lu2O3crystal, and the lifetime ratio is 1.63 with large fluorescence lifetime of4I11/2which is desirable lifetime ratio in these crystals. Thus, the spectral performance was significantly improved by co-doping 0.05 at.% of Pr3+. The high laser performance at 2.7 μm of 7% Er, 0.05% Pr: Lu2O3crystal is expectable.