摘要
本文报道在约７９８ｎｍ的半导体激光泵浦下，Ｔｍ３＋，Ｙｂ３＋共掺五磷酸盐非晶的蓝光发射。激光被样品吸收而直接激发Ｔｍ３＋离子至３Ｆ４能级。从Ｔｍ３＋向Ｙｂ３＋的能量传递，接着从Ｙｂ３＋向Ｔｍ３＋的能量传递，把Ｔｍ３＋离子激发至１Ｇ４能级。分析表明，声子在上转换过程中起了很大作用。
We report the blue upconversion luminescence of Tm^3+ and Yb^3+ codoped noncrystal pentaphosphate pumped by～798nm laser diode.The samples were directly excited to 3F4 level of Tm^3+ ion.Two energy transfer processes between Tm^3+ and Yb^3+ contribute mainly to the population of 1G4 level of Tm^3+.Phonon plays an important role in the upconversion process.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第4期390-393,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
博士点基金
国家教委跨世纪人才基金
