掺Cr^(3+),Tm^(3+),Ho^(3+)离子的YAG晶体的光谱性能

Spectrum Characteristic of YAG Crystals Doped Cr 3+ ,Tm 3+ ,Ho 3+ Ions

作者测试了Ｃｒ３＋，Ｔｍ３＋和Ｈｏ３＋离子在ＹＡＧ晶体中的吸收谱、荧光谱及荧光衰减寿命。计算了Ｃｒ３＋向Ｔｍ３＋和Ｈｏ３＋及Ｔｍ３＋向Ｈｏ３＋的能量转移效率。表明在（Ｃｒ，Ｔｍ，Ｈｏ）：ＹＡＧ晶体中由于加入Ｃｒ３＋，Ｔｍ３＋离子，使Ｈｏ３＋离子被敏化，荧光强度增大。（Ｃｒ，Ｔｍ。

The absorption and fluorescence spectra and fluorescence decay lifetimes of Cr 3+ ,Tm 3+ ,Ho 3+ ions doped in YAG crystals were measured.The energy transfer efficiences of Cr 3+ to Tm 3+ and Ho 3+ , and Tm 3+ to Ho 3+ were calculeted.It shows that because of doped Cr 3+ ,Tm 3+ ions in (Cr, Tm, Ho): YAG, Ho 3+ ions are sensitized and these fluorescence intensity increase. (Cr, Tm, Ho): YAG crystal is good crystal, which give out laser of ～ 2 μm wavelength ( 5 I 7 5 I 8).