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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO3 in the 300–3000 nm Wavelength Range
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2020-04-03 , DOI: 10.1002/crat.201900176
Li Dai 1 , Yuning Wang 1 , Ruirun Chen 2 , Shunxiang Yang 1 , Xianbo Han 1 , Chunrui Liu 1 , Yu Shao 1
Affiliation  

A series of Sc:Yb:Tm:LiNbO3 crystals with variable Sc3+ (0, 1, 2, and 3 mol%) concentration are grown by the Czochralski method. The effective distribution coefficients of Sc3+, Yb3+, and Tm3+ ions in the Sc:Yb:Tm:LiNbO3 crystals are determined by inductively coupled plasma atomic emission spectrometer. Sc3+ ions distribute uniformly in crystals when Sc3+ concentration reaches up to 3 mol%. The influence of Sc3+ concentration on the dopant occupancy and defect structure of Sc:Yb:Tm:LiNbO3 crystals is investigated by IR transmission spectra. Threshold concentration of Sc3+ ions in Sc:Yb:Tm:LiNbO3 crystals is nearly 3 mol%. By analyzing UV–vis–NIR absorption spectra, absorption property of Sc:Yb:Tm:LiNbO3 crystals is improved by doping Sc3+ ions. Additionally, the Sc:Yb:Tm:LiNbO3 crystals can be pumped by commercially available high power AlGaAs LDs.

中文翻译:

Sc:Yb:Tm:LiNbO3在300-3000 nm波长范围内的掺杂度和UV-Vis-NIR光谱

通过切克劳斯基方法生长一系列具有可变Sc 3+(0、1、2和3 mol%)浓度的Sc:Yb:Tm:LiNbO 3晶体。通过电感耦合等离子体原子发射光谱仪确定Sc:Yb:Tm:LiNbO 3晶体中Sc 3+,Yb 3+和Tm 3+离子的有效分布系数。当Sc 3+浓度达到3 mol%时,Sc 3+离子在晶体中均匀分布。通过红外透射光谱研究了Sc 3+浓度对Sc:Yb:Tm:LiNbO 3晶体的掺杂率和缺陷结构的影响。Sc的阈值浓度Sc:Yb:Tm:LiNbO 3晶体中的3+离子接近3摩尔%。通过分析紫外可见近红外吸收光谱,通过掺杂Sc 3+离子可以改善Sc:Yb:Tm:LiNbO 3晶体的吸收性能。此外,可以通过市售的高功率AlGaAs LD泵浦Sc:Yb:Tm:LiNbO 3晶体。
更新日期:2020-04-03
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