Nd(3＋)：Gd_3Sc_2Al_3O_(12)晶场能级及拟合  

Crystal field energy-levels of Nd^(3+):Gd_3Sc_2Al_3O_(12) and fitting

作　　者：肖进[1,2] 张庆礼[1] 周文龙[1] 谭晓靓[1] 刘文鹏[1] 殷绍唐[1] 江海河[1,3] 夏上达[2] 郭常新[2] 

机构地区：[1]中国科学院安徽光学精密机械研究所安徽省光子器件与材料实验室,合肥230031 [2]中国科学技术大学物理系,合肥230026 [3]中国科学院合肥物质科学研究院,合肥230031

出　　处：《物理学报》2010年第10期7306-7313,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50772112,50872135,90922003);安徽省优秀青年基金(批准号:08040106820)资助的课题~~

摘　　要：Nd3+:GSAG是性能优良的942nm激光晶体.用提拉法成功生长Nd3+:GSAG单晶,研究其室温透射光谱,辨认位置高达29967cm-1的68个Nd3+晶场能级.对这些能级拟合了自由离子及晶场Hamilton参量,拟合标准偏差为16.7cm-1,表明实验与计算能级符合很好.获得的Hamilton参量可用于计算Nd3+:GSAG中Nd3+的波函数、预测晶场分裂以及研究发光特性等。Nd3＋：GSAG,a laser crystal of 942 nm with good performance,was grown by Czochralski method successfully,and its transmission spectra at room temperature were studied.Sixty-eight crystal field splitting levels of Nd3 ＋ with the maximum up to 29967 cm-1 were identified,to which the Hamiltonian parameters of free-ion and crystal field were fitted,and the root-mean-square deviation of energy level fitting is 16.7 cm-1,which indicated that the experimental and calculated energy levels are well consistent.The obtained Hamiltonian parameters can be used to calculate the wavefunctions of Nd3 ＋ in GSAG,predict its energy level splitting,study the luminescent properties and so on.

关 键 词：晶体场 能级分裂 透射光谱 晶体生长 

分 类 号：O73[理学—晶体学]