Yb:YAG及Cr,Yb:YAG晶体的发光特性
Luminescence properties of Yb:YAG and Cr,Yb:YAG crystals
-
摘要: 研究了室温下Yb:YAG的上转换荧光光谱,此荧光归因于Yb3+离子的“合作”发光和Yb3+离子到稀土杂质离子的能量转移。测试了Yb:YAG晶体的X射线荧光,发光峰对应于电荷迁移态到Yb3+离子的基态、激光态间的跃迁。研究了Cr,Yb:YAG晶体的荧光光谱,讨论了Cr4+激光输出的可能性。Abstract: The upconversion luminescence of Yb3+-doped yttrium aluminum garnets under 940 nm excitation at room teperature was studied, and it was ascribed to Yb3+ cooperative luminescence and the presence of rare earth impurity ions. X-ray excited luminescence features of the crystal were also measured and the emission bands correspond to the transition from charge transfer state to the ground and excited state of Yb3+ ion. The emission spectra of Cr,Yb:YAG crystal were studied and the Cr4+ emission band was observe with its peak at 1.35 μm wavelength range from 1.2 to 1.6 μm. The probability of Cr4+ laser output was discussed.
-
Key words:
- yb:yag /
- cr /
- yb:yag /
- upconversion luminescence /
- x-ray excited luminescence /
- energy transfer
点击查看大图
计量
- 文章访问数: 2249
- HTML全文浏览量: 210
- PDF下载量: 463
- 被引次数: 0