Up-conversion emission of Er3+ ions in Yb3+ sensitized oxide crystals

被引：0
作者：
Wang, J [1 ]
Ruan, YF [1 ]
Lin, JY [1 ]
Liu, J [1 ]
Huang, BX [1 ]
机构：
[1] Tianjin Univ, Sch Sci, Dept Phys, Tianjin 300072, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2004年 / 22卷
关键词：
up-conversion; oxide crystals; Judd-Ofelt theory; rate equations;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Most of the up-conversion lasers operated at room temperature are realized with heavy metal fluorides. In this paper the Judd-Ofelt parameters Omega(lambda)(lambda = 2,4,6) were calculated for Er3 + ions in Yb3 + sensitized LiNbO3 and YVO4 crystals at room temperature, together with the radiative transition probabilities, non-radiative transition probabilities and resonant transition probabilities of Er3 + ions. Taking into account the energy transfer from Yb3 + to Er3 +, the rate equations are given for Er3 + ions. We obtained from a solution of the rate equations that Yb3 + sensitized YVO4 crystal is more efficient than Yb3 + sensitized LiNbO3 crystal in the up-conversion of 550 nm of Er3 + emission, which is consistent with our observation.
引用
收藏
页码：141 / 145
页数：5
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