摘要
测试了Ｎｄ∶ＹＶＯ４和Ｎｄ∶ＹＬｉＦ４晶体的吸收谱和荧光谱，并根据ＪｕｄｄＯｆｅｌｔ理论计算了Ｎｄ３＋离子在ＹＶＯ４、ＹＬｉＦ４和ＹＡＧ晶体中的唯象强度参数Ω２、Ω４、Ω６，利用这些值计算了振子强度ｆＪ′，荧光寿命τＪ，荧光分支比βＪ′和辐射截面σｅ等光谱参数。从速率方程计算了Ｎｄ３＋离子这三种晶体中的最佳掺杂浓度。论述了ＹＶＯ４和ＹＬｉＦ４作为基质晶体的优点。
The absorption and fluorescence spectra of Nd∶YVO 4 and Nd∶YLiF 4 were measured,and the phenomenological intensity parameters Ω t(t =2,4,6) of Nd 3+ ions in YVO 4,YLiF 4 and YAG crystals were calculated on the basis of Judd Ofelt theory.The spectral characteristic parameters on oscillator strengths f JJ′ ,fluorescence lifetimes τ ,fluorescence branching rations β JJ′ and stimulated emissive transition cross sections σ e were calculated.The optimum doped relative concentrations of Nd 3+ ions in these crystals were obtained from kinetic equations.Advantages of YVO 4 and YLiF 4 as laser host crystals were discussed.
出处
《人工晶体学报》
EI
CAS
CSCD
1996年第3期198-204,共7页
Journal of Synthetic Crystals
基金
国家自然科学基金
中国计量学院基金
关键词
激光晶体
掺杂
荧光性
钒酸钇
掺钕
氟化钇锂
Nd 3+ ion
laser crystal
spectral characteritics
optimum doped concentration
