pr^3＋掺杂透明氟氧化物玻璃陶瓷的光谱特性  

Spectroscopic Properties of Pr^(3+) Doped Transparent Oxyflu oride Vitroceramics

作　　者：陈英[1] 陈晓波[1] 陈鸾[1] 杨小冬[1] 胡丽丽[2] 吴正龙[1] 于春雷[2] 王亚非[1] 刘大禾[1] 田强[1] 

机构地区：[1]北京师范大学物理系,应用光学北京重点实验室,分析测试中心,北京100875 [2]中国科学院上海高功率激光玻璃研究中心,上海201800

出　　处：《光谱学与光谱分析》2011年第12期3213-3217,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(10674019)资助

摘　　要：根据Pr3+掺杂透明氟氧化物玻璃陶瓷(Pr(0.2)∶FOV)样品在室温下的吸收光谱,分别采用了标准和修正的Judd-Ofelt理论拟合出J-O强度三参量Mn。结果表明,此修正的J-O理论应用到Pr(0.2)∶FOV材料的跃迁强度计算中是合理的和必要的。并由此修正理论计算了各个激发态之间跃迁的振子强度、自发辐射速率、荧光分支比和积分发射截面等光谱参量,分析了Pr3+∶FOV材料的应用价值。其中,特别是3 P0→3 H4,3 P1→3 H5和3 P0→3 H6,3 P0→3 F2等几个强发光能级都有很好的应用前景。由此表明:Pr3+掺杂的氟氧化物玻璃陶瓷作为固态激光材料有可观的应用前景。In the present paper,the room-temperature absorption spectrum of Pr3＋-doped transparent oxyfluoride vitroceramics（Pr（0.2）∶FOV）was studied systematically.The optical characterisation of Pr（0.2）∶FOV was performed.The standard andmodified Judd-Ofelt theories were used to determine the J-O intensity parameters.The problems with standard Judd-Ofelt theo-rie for Pr3＋ were discussed.Based on the intensity parameters,some predicted optical parameters,such as the spontaneous radi-ative transition probabilities,radiative lifetimes,branching ratios and integrated emission cross section were calculated.And theapplication of Pr∶FOV was analyzed.Especially there are large oscillator strength and large integrated emission cross section inthe transitions of 3 P0→3 H4,3 P1→3 H5and 3 P0→3 H6,3 P0→3 F2.So,they are more worth of attention.The obtained spectro-scopic results show the potential application of the Pr3＋-doped oxyfluoride vitroceramics for solid-state lasers.

关 键 词：Pr3+掺杂氟氧化物玻璃陶瓷 修正的J-O理论 光谱特性 

分 类 号：O433.5[机械工程—光学工程] O614.3[理学—光学]