Nd^(3+)∶KLa(MoO_4)_2激光晶体的光谱特性分析  

Analysis of spectral properties of Nd^(3+)∶KLa(MoO_4)_2 laser crystal

作　　者：李安明[1] 韩永飞[1] 陈振强[1,2] 龙西法[2] 李景照[1] 张戈[2] 李真[1] 

机构地区：[1]暨南大学光电工程研究所,广东广州510632 [2]中国科学院光电材料化学与物理重点实验室,福建福州350002

出　　处：《暨南大学学报（自然科学与医学版）》2010年第1期63-66,共4页Journal of Jinan University(Natural Science & Medicine Edition)

基　　金：中科院光电材料化学与物理重点实验室开放基金(2009KL006);广东省教育部产学研合作计划项目(2008A01030004);广东省自然科学基金(9178922035-X000002)

摘　　要：采用中频感应提拉法生长出了Nd3+∶KLa(MoO4)2单晶,测试其室温下非偏振吸收光谱、荧光发射光谱.805 nm处吸收峰半峰宽10 nm,吸收截面为3.74×10-20cm2.主荧光发射峰位于1 059.45 nm处,荧光寿命160.6μs.利用Judd-Ofelt理论计算出J-O强度参数Ωt(t=2,4,6)及自发辐射概率、荧光分支比、辐射寿命、荧光量子效率及受激发射截面等参数.Nd^3＋ doped KLa（MoO4）2 single crystal was grown by the Czochralski method. The nonpolarized absorption and fluorescence emission spectra were investigated at room temperature. The FWHM of the absorption peak at 805 nm is 10 nm, and the absorption cross-section is 3.74 × 10 ^-20 cm^2. The fluorescence lifetime of the main emission peak at 1 059.45 nm is 160. 6 us. The J-O intensity parameters were calculated by the Judd-Ofelt theory, and some other parameters such as spontaneous radiative transition probabilities, the branching ratios, radiative lifetime, fluorescence quantum efficiency and stimulated emission cross-section as well.

关 键 词：Nd3+∶KLa(MoO4)2 激光晶体 JUDD-OFELT理论 光谱特性 

分 类 号：O657.3[理学—分析化学]