摘要
采用Czochralski法生长了均匀透明的Tm :YVO4,Tm :Er:YVO4和Tm :Yb :YVO4晶体 ,测量了其室温下吸收光谱 ,研究了晶体中掺杂稀土离子的光谱性质。根据Judd Ofelt理论拟合出晶体场唯象强度参数 :Ω2=1 13× 10 -2 0 cm2 ,Ω4=1 6 3× 10 -2 0 cm2 ,Ω6=0 6 5× 10 -2 0 cm2 。
The transparent and homogeneous RE:YVO4 crystals have been grown by Czochralski method. The room temperature absorption spectra have been measured. The spectroscopic properties have been studied for rare earth-doped (Tm3+, Er3+, Yb3+)RE: YVO4. According to Judd-Ofelt theory, the spectral strength parameters: Omega(2) = 1.13 x 10(-20) cm(2), Omega(4) = 1.63 x 10(-20) cm(2) and Omega = 0.65 x 10(-20) cm(2) of Er3+ ion have been fitted, and the radiative transtition probabilities A(JJ'), oscillator strengths f(JJ'), and radiative lifetime tau have been calculated. We report the results of cross energy transfer processes between Tm3+ and Yb3+ ions, and the sensitization between Tm3+ and Er3+ ions.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期665-668,共4页
Spectroscopy and Spectral Analysis
基金
福建省科技厅项目资助 (K2 0 0 1 0 0 9)
