| Sc掺杂Nd:CaF2激光晶体的结构及其光谱性能参数 |
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| 引用本文： | 逄思远,钱小波,吴庆辉,于浩,徐家跃,苏良碧.Sc掺杂Nd:CaF2激光晶体的结构及其光谱性能参数[J].无机材料学报,2018,33(8):873-876. |
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| 作者姓名： | 逄思远 钱小波 吴庆辉 于浩 徐家跃 苏良碧 |
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| 作者单位： | 1. 上海应用技术大学 材料科学与工程学院, 上海 201418;
2. 中国科学院上海硅酸盐研究所 人工晶体研究中心, 上海 201800 |
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| 基金项目： | 国家重点研发计划(2016YFB0402101);国家自然科学基金(51272264, 91333106);中国科学院战略性先导科技专项(B类)(XDB16030000);The National Key Research and Development Program of China (2016YFB0402101);The Strategic Priority Program of the Chinese Academy of Sciences (XDB16030000) |
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| 摘 要： | 采用温度梯度法生长了0.5at% Nd、xat% Sc:CaF2(x=0, 2, 5, 8)系列晶体, 测试了晶体的吸收光谱、荧光光谱和荧光寿命。研究发现发射强度和荧光寿命随着Sc3+离子浓度的增加而提高。通过改变Sc3+离子的浓度发现, 当掺杂5at% Sc3+时可以获得最大的吸收截面为1.42×10-20 cm2。另外, 掺入Sc3+使共掺晶体在吸收光谱796 nm处产生新峰。综上, 通过调节Sc3+离子浓度, 可以改变Nd3+离子的局域结构, 优化晶体的光谱性能。
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| 关 键 词： | Nd:CaF2晶体 调剂离子 局域结构 光谱性能 |
| 收稿时间： | 2017-11-15 |
| 修稿时间： | 2018-01-04 |
Structure and Spectral Property of Sc Doped Nd:CaF2 Laser Crystals |
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| PANG Si-Yuan,QIAN Xiao-Bo,WU Qing-Hui,YU Hao,XU Jia-Yue,SU Liang-Bi.Structure and Spectral Property of Sc Doped Nd:CaF2 Laser Crystals[J].Journal of Inorganic Materials,2018,33(8):873-876. |
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| Authors: | PANG Si-Yuan QIAN Xiao-Bo WU Qing-Hui YU Hao XU Jia-Yue SU Liang-Bi |
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| Affiliation: | 1. School of Material Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;
2. Synthetic Single Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China |
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| Abstract: | 0.5at% Nd, xat% Sc:CaF2 single crystals (x=0, 2, 5, 8) were fabricated via the temperature gradient technique in this work. The absorption spectra, fluorescence spectra and fluorescence lifetime of 0.5at% Nd, xat% Sc:CaF2 single crystals were investigated. Both fluorescence intensity and fluorescence lifetime were found to be enhanced with the increase of Sc3+ ion doping concentration. In addition, by optimizing the Sc3+ content, 0.5at% Nd, 5at% Sc:CaF2 yielded the largest absorption cross section of 1.42×10-20 cm2. Moreover, a new peak were observed at 796 nm with the Sc3+ ion doped in 0.5at% Nd:CaF2 crystals. Above all, the concentration of Sc3+ ion can regulate local structure of Nd3+ ion and optimize its crystalline spectral properties. |
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| Keywords: | Nd:CaF2 crystal regulating ion local structure spectral property |
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