为探索新型激光材料,采用高温固相反应法合成了(1at％) Nd∶ YTaO4多晶粉末,研究了其结构与发光性质.利用Rietveld方法对样品的X射线衍射谱进行精修得到晶胞参数、原子坐标等.测试了样品8K温度下的激发光谱以及8K和室温下808 nm激发的荧光光谱,对发光谱峰进行了指认,获得了Nd3+在YTaO4中的晶场能级分裂.结果表明,Nd3++的4 F3/2→4I11/2跃迁的发射截面为28.4×10-20 cm2,荧光寿命为155μs.较小的发射截面和较长的能级寿命表明Nd∶YTaO4是一种很有希望的激光二极管抽运的调Q激光材料.
参考文献
| [1] | 彭方;张庆礼;王小飞;张会丽;丁守军;刘文鹏;罗建乔;孙敦陆;孙贵花.Nd3+：SrY2O4粉体的制备、结构与光谱性能研究?[J].物理学报,2016(1):014211-1-014211-6. |
| [2] | Peng, Fang;Yang, Huajun;Zhang, Qingli;Luo, Jianqiao;Liu, Wenpeng;Sun, Dunlu;Dou, Renqin;Sun, Guihua.Spectroscopic properties and laser performance at 1,066 nm of a new laser crystal Nd:GdTaO4[J].Applied physics, B. Lasers and optics,20154(4):549-554. |
| [3] | Min Ha Hwang;Young Jin Kim.Luminescent properties of Eu~(3+)-doped YTaO_4 powders[J].CERAMICS INTERNATIONAL,20084(4):1117-1120. |
| [4] | 胡冰;洪广言;甘树才;孔丽.YTaO4：Eu,Gd的合成及其发光[J].发光学报,2009(5):601-605. |
| [5] | 向东;刘波;顾牡;方弘.M'型和M型YTaO4电子结构和光学性质的理论研究[J].光学仪器,2008(4):18-23. |
| [6] | Arellano, I.D.;Nazarov, M.V.;Cortés, J.A.;Ahmad Fauzi, M.N..Luminescence of yttrium niobium-tantalate doubly activated by europium and/or terbium under X-ray and electron beam excitation[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,20129(9):2479-2483. |
| [7] | Zhang Qing-Li;Ning Kai-Jie;Ding Li-Hua;Liu Wen-Peng;Sun Dun-Lu;Jiang Hai-He;Yin Shao-Tang.Calculating Hamiltonian parameters for Yb3+ in a low-symmetry lattice site, and fitting the structure and levels of Yb3+: RETaO4 (RE =Gd, Y, and Sc)[J].中国物理B（英文版）,2013(6):522-529. |
| [8] | 高进云;张庆礼;王小飞;刘文鹏;孙贵华;孙敦陆;殷绍唐.Nd3+掺杂GdTaO4的吸收光谱分析和晶场计算?[J].物理学报,2015(12):124209-1-124209-6. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%