在TmF3-Doped CaF2晶体的光谱特性
Carla Schornig1, Marius Stef1, Gabriel Buse2
1Crystal Growth Laboratory, Faculty of Physics, West University of Timisoara, 4 Bd. Vasile Parvan, 300223 Timisoara, Romania.
Materials (Basel, Switzerland)
|October 26, 2024
概括
我们生长了TmF3-doped CaF2晶体,并分析了它们的光学特性. 对Tm3+和Tm2+离子的最佳发光发生在0.1mol%的TmF3下,对于Tm2+报告了新的紫外线辐射.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 频谱学是一种光谱学.
背景情况:
- 像CaF2这样的化物晶体是稀土离子的有希望的宿主.
- 图 (Tm) 离子,在三价 (Tm3+) 和双价 (Tm2+) 状态下,表现出独特的光学特性.
- 了解兴奋剂效应对于开发先进光学材料至关重要.
研究的目的:
- 使用垂直的布里奇曼方法来生长TmF3-合的CaF2晶体.
- 在CaF2宿主中对Tm3+和Tm2+离子进行全面的光谱分析.
- 研究TmF3度对光学吸收和光发光的影响.
主要方法:
- 垂直布里奇曼晶体生长技术.
- 紫外线-VIS-NIR光学吸收光谱学. 光学吸收光谱学.
- 光发光光谱学. 光发光光谱学.
- 贾德-奥菲尔特 (JO) 的形式主义用于光学参数计算.
主要成果:
- 确定了Tm3+和Tm2+离子的特征吸收带.
- 对于Tm3+来说,确定了Judd-Ofelt强度参数 (Ω2, Ω4, Ω6).
- 显著的Tm3+和Tm2+排放在0.1%mol%的TmF3中被观察到.
- 发现了一种新型的UV发射频段,归因于Tm2+.
- 较高的TmF3度导致由于非辐射能量转移而导致发光灭.
结论:
- 这项研究阐明了Tm-doped CaF2晶体的光学行为.
- 对于发光的最佳TmF3度约为0.1 mol%.
- 这些发现对激光技术和辐射剂量计应用有影响.
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