论文部分内容阅读
研究了加入敏化离子Ｃｒ３＋和Ｅｒ３＋的Ｔｍ：ＹＡＧ晶体的吸收谱和荧光谱，计算了Ｃｒ３＋、Ｅｒ３＋、Ｔｍ３＋离子的２Ｅ、４Ｉ１３／２、３Ｆ４能态的平均寿命及能量；转移效率、转移速率．得出Ｃｒ３＋→Ｔｍ３＋转移效率为８０％，转移速率为２．１×１０３ｓ－１．由（Ｅｒ，Ｔｍ）：ＹＡＧ的荧光谱可见存在Ｅｒ３＋→Ｔｍ３＋的有效的能量转移．讨论了Ｃｒ３＋→Ｔｍ３＋和Ｅｒ３＋→Ｔｍ３＋能量转移的不同．
The absorption spectra and fluorescence spectra of Tm: YAG crystals doped with sensitized ions Cr3 + and Er3 + were studied. The average lifetimes and energies of 2E, 4I13 / 2 and 3F4 states of Cr3 +, Er3 + and Tm3 + ions were calculated. The transfer efficiency and transfer rate . The results showed that the transfer efficiency of Cr3 + → Tm3 + was 80% and the transfer rate was 2.1 × 103s-1. The fluorescence energy spectrum of (Er, Tm): YAG shows that there is an effective energy transfer of Er3 + → Tm3 +. The differences of energy transfer between Cr3 + → Tm3 + and Er3 + → Tm3 + are discussed.