摘要
研究了不同掺杂浓度的Yb∶YAG晶体氢气退火前后的色心吸收 ,发现随着Yb2 O3 浓度的增加 ,色心浓度并不增加。测量了退火前后不同浓度晶体的荧光光谱和荧光寿命 ,指出低浓度掺杂时 ,色心对发光强度和荧光寿命没有猝灭作用 ,只有在掺杂浓度大于 1 0at. %时 。
The color center absorption properties of as-grown and H2-annealing Yb:YAG with different Yb3+ doped concentration have been studied, and its concentration is not consistent with doping concentration of Yb2O3. The fluorescence spectra and fluorescence lifetime of Yb:YAG are measured. It is only when the doped concentration more than 10 at.-% that the color center has a evident quenching effect on fluorescence intensity and fluorescence lifetime of Yb:YAG.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2003年第8期709-712,共4页
Chinese Journal of Lasers
基金
国家高技术研究发展计划 (86 3)资助项目 (2 0 0 2AA31 1 0 30 )
关键词
人工晶体
YB:YAG晶体
色心
荧光寿命
浓度猝灭
Annealing
Color centers
Doping (additives)
Fluorescence
Spectroscopy
Spectrum analysis
Yttrium
