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Growth and spectroscopic properties of Tb3+ doped La2CaB10O19 crystal

机译：Tb3 +掺杂La2CaB10O19晶体的生长和光谱性质

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摘要

Tb3+ doped La2CaB10O19 (Tb:LCB) crystal with dimensions of 60 x 26 x 22 mm3 has been grown by the top-seeded solution growth (TSSG) method. X-ray powder diffraction (XRPD) analysis shows that the introduction of Tb3+ does not change the structure of LCB crystal. Tb3+ content was determined by inductively coupled plasma optical emission spectrometry to be 3.76 x 10(20) ions/cm(3). The principal refractive indices of Tb:LCB crystal were accurately measured at room temperature by using the minimum deviation method, and Sellmeier equations were fitted. The unpolarized absorption and emission spectra were measured at room temperature by using X-, Y-, and Z-cut crystals. According to the Judd-Ofelt theory, the spontaneous transition probabilities, fluorescence branch ratio, and radiation lifetime of D-5(4) state were calculated. The unpolarized and polarized emission properties under the 368 nm excitation were also evaluated. The decay time of the 543 nm emission corresponding to D-5(4)-F-2(5) transition was measured. The experimental results agree well with the calculated ones. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过顶部种子溶液生长（TSSG）方法已生长出尺寸为60 x 26 x 22 mm3的Tb3 +掺杂La2CaB10O19（Tb：LCB）晶体。 X射线粉末衍射（XRPD）分析表明，Tb3 +的引入不会改变LCB晶体的结构。通过电感耦合等离子体发射光谱法测定的Tb3 +含量为3.76 x 10（20）离子/ cm（3）。使用最小偏差法在室温下准确测量了Tb：LCB晶体的主折射率，并拟合了Sellmeier方程。使用X切，Y切和Z切晶体在室温下测量非偏振吸收光谱和发射光谱。根据Judd-Ofelt理论，计算了D-5（4）态的自发跃迁几率，荧光分支比和辐射寿命。还评估了在368 nm激发下的非偏振和偏振发射特性。测量对应于D-5（4）-F-2（5）跃迁的543 nm发射的衰减时间。实验结果与计算结果吻合良好。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Optical Materials》 |2015年第11期|27-31|共5页
  • 作者

    Shan Faxian; Fu Ying; Zhang Guochun; Xu Tianxiang; Zhang Xinyuan; Wu Yicheng;

  • 作者单位

    Chinese Acad Sci Beijing Ctr Crystal Res & Dev Key Lab Funct Crystals & Laser Technol Tech Inst Phys & Chem Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Beijing Ctr Crystal Res & Dev Key Lab Funct Crystals & Laser Technol Tech Inst Phys & Chem Beijing 100190 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China|Shandong Univ Inst Crystal Mat Jinan 250100 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tb:La2CaB10O19; Crystal growth; Refractive index; Spectroscopy;

    机译：Tb：La2CaB10O19;晶体生长;折射率光谱学;

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