Spectroscopic characteristics of Dy3+-doped Y3Al5O12 (YAG) and Y3ScAl4O12 (YSAG) garnet single crystals grown by the micro-pulling-down method

Jie Xu (1) , Qingsong Song (1) , Jian Liu (1) , Shidong Zhou (1) , Yuxin Pan (1) , Dongzhen Li (1) , Peng Liu (1) , Xiaodong Xu (1) , Yuchong Ding (2) , Jun (jim) Xu (3) , Kheirreddine Lebbou (4)

1 School of Physics and Electronic Engineering
2 26th Research Institute of China Electronics Technology Group Corporation (China Electronics Technology Group Corporation)
3 Tongji University
4 iLM - LUMINESCENCE - iLM - Luminescence

Dy³⁺-doped Y₃Al₅O₁₂ (YAG) and Y₃ScAl₄O₁₂ (YSAG) single crystals have been successfully grown by the micro-pulling-down (μ-PD) technique for the first time. The room temperature absorption spectra, fluorescence spectra and fluorescence decay curves were measured. Dy:YAG and Dy:Y₃ScAl₄O₁₂ crystals exhibit strongest emission centered at 583 nm, corresponding to the ⁴F_9/2 → ⁶H_13/2 transition. The decay lifetime of the ⁴F_9/2 level was measured to be 634 μs and 667 μs, respectively. All these results indicate that the Dy:YAG and Dy:Y₃ScAl₄O₁₂ crystals are promising candidates for yellow laser operation.

Mots clés: Dy:YAG; Dy:Y3ScAl4O12; Micro-pulling-down method; Spectral property

Domaines: Sciences de l'ingénieur [physics]; Chimie; Physique [physics]

Jie Xu, Qingsong Song, Jian Liu, Shidong Zhou, Yuxin Pan, et al.. Spectroscopic characteristics of Dy3+-doped Y3Al5O12 (YAG) and Y3ScAl4O12 (YSAG) garnet single crystals grown by the micro-pulling-down method. Journal of Luminescence, 2019, 215, pp.116675. ⟨10.1016/j.jlumin.2019.116675⟩. ⟨hal-02417239⟩