Sm3+-doped (Ca, Mg, Zr)GGG crystal: A potential reddish-orange laser crystal
Sm3+-doped (Ca, Mg, Zr)GGG crystal: A potential reddish-orange laser crystal
复制标题
DOI：
10.1016/j.jallcom.2009.11.018
复制
发表时间：
2010-02
影响因子：
6.2
通讯作者：
Wenlong Zhou;Qingli Zhang;Jing-zhong Xiao;Jian Luo;Wenpeng Liu;Hai-he Jiang;S. Yin
中科院分区：
文献类型：
--
作者：
Wenlong Zhou;Qingli Zhang;Jing-zhong Xiao;Jian Luo;Wenpeng Liu;Hai-he Jiang;S. Yin
采用提拉法生长了Sm ~（3+）掺杂的（Ca，Mg，Zr）GGG晶体。研究了它的光吸收、荧光和寿命。计算了其折射率和吸收截面。利用Judd-Ofelt理论计算了4G_（5/2）态的强度参数（Ωt）、自发辐射几率、分支比、电偶极线强度、磁偶极线强度和辐射寿命。计算了566、613、649和709 nm处的受激发射截面。低浓度（0.27mol/L）的Sm ~（3+）离子的4G ~（5/2）能级的衰减曲线近似为单指数衰减，并测定了实验荧光寿命（τexp）。
Sm3+doped (Ca,Mg,Zr)GGG crystal has been grown by Czochralski technique. Its optical absorption, fluorescence and lifetime were studied. The refractive index and absorption cross-section were calculated. Judd–Ofelt theory was used to calculate the intensity parameters (Ωt), the spontaneous emission probabilities, the branching ratios, electric-dipole line strengths, magnetic-dipole line strengths and the radiative lifetime of the state4G5/2. The stimulated emission cross-sections at 566, 613, 649, and 709nm were calculated. The decay curve of the4G5/2level of Sm3+ions with relatively low concentration (0.27mol/L) was nearly single exponential and the experiment fluorescence lifetime (τexp) was determined.