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。
The upconversion luminescence of Yb^3＋-doped yttrium aluminum garnets under 940 nm excitation at room teperature was studied, and it was ascribed to Yb^3＋ 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 Yb^3＋ ion. The emission spectra of Cr, Yb： YAG crystal were studied and the Cr^4＋ emission band was observe with its peak at 1.35 μm wavelength range from 1.2 to 1.6μm. The probability of Cr^4＋ laser output was discussed.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2005年第B04期67-70,共4页
High Power Laser and Particle Beams
基金
国家863计划项目资助课题
