Growth and spectroscopic properties of Ho3+ doped GdYTaO4 single crystal

Growth and spectroscopic properties of Ho3+ doped GdYTaO4 single crystal
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Ho3掺杂GdYTaO4单晶的生长和光谱特性

DOI:
10.1016/j.jlumin.2018.10.096
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发表时间:
2019-03
影响因子:
3.6
通讯作者:
Sun Dunlu
Sun Dunlu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dou Renqin;Liu Wenpeng;Zhang Qingli;Peng Fang;Sun Guihua;Luo Jianqiao;Chen Yuanzhi;Sun Dunlu

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首次采用提拉法生长出了2.9 μ mHo:GdYTaO 4激光晶体。晶体属单斜空间群I2/a(No.15),X射线摇摆曲线表明晶体质量好。研究了Ho:GdYTaO 4晶体的室温光谱特性。基于Judd-Ofelt理论,详细计算了该体系的强度参数、自发跃迁几率、荧光分支比和辐射寿命。最强发射峰位于2848 nm,半峰宽约为15 nm。5I 6和5I 7能级的实验寿命分别为0.31和8.08ms。此外,还确定了5I 6、5I 7和5I 8的斯塔克能级,计算出它们的分裂值分别为254.1、226.7和370。4 cm-1,分别。
A promising 2.9 µm Ho:GdYTaO4laser crystal was grown successfully by the Czochralski method for the first time. The crystal belongs to the monoclinic space group ofI2/a (No. 15) and high crystalline quality is demonstrated by X-ray rocking curves. The spectral properties of Ho:GdYTaO4crystal at room temperature are investigated. Based on the Judd–Ofelt theory, the intensity parameters, spontaneous transition probabilities, fluorescence branching ratios, and radiative lifetimes are obtained in detail. The strongest emission peak is located at 2848 nm, and the full width at half maximum is about 15 nm. The experimental lifetimes of5I6and5I7levels are 0.31 and 8.08 ms, respectively. Moreover, the Stark levels of5I6,5I7, and5I8are identified and the splitting values are calculated to be 254.1, 226.7, and 370. 4 cm−1, respectively.
DOI: 10.1063/1.373031
发表时间: 2000-05-01
影响因子: 3.2
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