| 高浓度掺Er3+铌酸锂晶体的光谱参数计算 |
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| 引用本文： | 孙敦陆,张庆礼,王爱华,杭寅,张连瀚,钱小波,祝世宁,殷绍唐.高浓度掺Er3+铌酸锂晶体的光谱参数计算[J].光谱学与光谱分析,2005,25(9):1377-1381. |
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| 作者姓名： | 孙敦陆 张庆礼 王爱华 杭寅 张连瀚 钱小波 祝世宁 殷绍唐 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所,安徽,合肥,230031;中国科学院上海光学精密机械研究所,上海,201821;南京大学固体微结构国家重点实验室,江苏,南京,210093 |
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| 基金项目： | 国家自然科学基金(50472104)资助项目 |
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| 摘 要： | 用提拉法成功地生长了6mol%的高浓度掺铒铌酸锂晶体。测量了晶体的两个非偏振方向(X和Z)以及两个偏振方向(π和δ)的吸收光谱。高浓度掺铒铌酸锂晶体的吸收系数高,有利于提高泵浦效率。根据所测的吸收光谱用Judd-Ofelt理论拟合出了Er3 离子的强度参数Ωλ。所得的均方差结果显示偏振拟合的误差要小于非偏振拟合。利用偏振吸收数据计算了各能级跃迁的自发辐射跃迁几率(AJJ′)、辐射寿命(τ)、荧光分支比(β)和积分发射截面(σp)等参数,对计算结果进行了讨论并与其他文献的报道结果进行了比较。
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| 关 键 词： | Er:LiNbO3 光谱参数 Judd-Ofelt理论 偏振 |
| 文章编号： | 1000-0593（2005）09-1377-05 |
| 收稿时间： | 2004-04-13 |
| 修稿时间： | 2004-07-15 |
Calculation of Spectroscopic Parameters of Highly Doped Er3+ in Lithium Niobate |
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| SUN Dun-lu,ZHANG Qing-li,WANG Ai-hua,HANG Yin,ZHANG Lian-han,QIAN Xiao-bo,ZHU Shi-ning,YIN Shao-tang.Calculation of Spectroscopic Parameters of Highly Doped Er3+ in Lithium Niobate[J].Spectroscopy and Spectral Analysis,2005,25(9):1377-1381. |
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| Authors: | SUN Dun-lu ZHANG Qing-li WANG Ai-hua HANG Yin ZHANG Lian-han QIAN Xiao-bo ZHU Shi-ning YIN Shao-tang |
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| Institution: | 1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 2. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201821, China; 3. State Key Laboratory of Solid Microstmctures, Nanjing University, Nanjing 210093, China |
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| Abstract: | A highly doped Er3+: LiNbO3 (concentration 6 mol%) crystal was grown successfully by Czochralski method. The crystal is higher than that of thelowly doped Er3+ in LiNbO3 crystal, which is helpful toimprove absorption coefficient of the grown the pumping efficiency. The absorption spectra at two unpolarized directions (X and Z) and two polarized directions (E parallel Z, E perpendicular Z) were measured. Using the Judd-Ofelt theory, and according to the measured absorption spectra, the intensity parameters omegalambda of Er3+ were fitted. The results of root-mean square (r. m. s) deviation show that the error of polarized fitting is less than that of unpolarized one. Thus fluorescence transition probabilities (Ajj), radioactive lifetime (tau), fluorescence branching ratio (beta), and integrated emission cross section (sigmap) were calculated and accepted according to the polarized results, and were also discussed and compared with the ones reported in the literature. |
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| Keywords: | Er:LiNbO_3 Spectroscopic parameters Judd-Ofelt theory Polarization |
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