中国物理B ›› 2004, Vol. 13 ›› Issue (2): 258-263.doi: 10.1088/1009-1963/13/2/023

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Optical transitions and upconversion properties of Er3+-doped chloride tellurite glasses

温磊, 李顺光, 黄国松, 胡丽丽, 姜中宏   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2003-05-28 修回日期:2003-06-23 出版日期:2004-02-06 发布日期:2005-07-06
  • 基金资助:
    Project supported by the Science and Technology Foundation of Shanghai (022261046) and the National Natural Science Foundation of China (60207006).

Optical transitions and upconversion properties of Er3+-doped chloride tellurite glasses

Wen Lei (温磊), Li Shun-Guang (李顺光), Huang Guo-Song (黄国松), Hu Li-Li (胡丽丽), Jiang Zhong-Hong (姜中宏)   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2003-05-28 Revised:2003-06-23 Online:2004-02-06 Published:2005-07-06
  • Supported by:
    Project supported by the Science and Technology Foundation of Shanghai (022261046) and the National Natural Science Foundation of China (60207006).

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摘要： Er^{3+}-doped lead chloride tellurite glasses were prepared using the conventional melting and quenching method. The absorption spectra were measured and the Judd－Ofelt analysis was performed. The spectroscopic parameters such as the intensity parameters, transition probabilities, radiative lifetimes, and branching ratios were obtained. Intense infrared emission and visible upconversion luminescence under 976 nm excitation were observed. For the 1.55μm emission, the full width at half maximum and the emission cross sections are more than 50 nm and 8×10^{- 20}cm^2, respectively. Three efficient visible luminescences centred at 525, 547, and 658nm are assigned to the transitions from the excited states {}^{2}H_{11/2}, {}^{4}S_{3/2}, and {}^{4}F_{9/2} to the ground state {}^{4}I_{15/2}, respectively. The upconversion mechanisms and the power-dependent intensities are also discussed and evaluated.

关键词: upconversion material, chloride tellurite glass, spectroscopy, Er^{3+} ion

Abstract: Er$^{3+}$-doped lead chloride tellurite glasses were prepared using the conventional melting and quenching method. The absorption spectra were measured and the Judd－Ofelt analysis was performed. The spectroscopic parameters such as the intensity parameters, transition probabilities, radiative lifetimes, and branching ratios were obtained. Intense infrared emission and visible upconversion luminescence under 976 nm excitation were observed. For the 1.55μm emission, the full width at half maximum and the emission cross sections are more than 50 nm and $8\times10^{- 20}$cm$^2$, respectively. Three efficient visible luminescences centred at 525, 547, and 658nm are assigned to the transitions from the excited states $^{2}H_{11/2}$, $^{4}S_{3/2}$, and $^{4}F_{9/2}$ to the ground state $^{4}I_{15/2}$, respectively. The upconversion mechanisms and the power-dependent intensities are also discussed and evaluated.

Key words: upconversion material, chloride tellurite glass, spectroscopy, Er$^{3+}$ ion

中图分类号:  (Other solid inorganic materials)

  • 78.55.Hx
78.30.-j (Infrared and Raman spectra) 78.40.-q (Absorption and reflection spectra: visible and ultraviolet) 78.55.Qr (Amorphous materials; glasses and other disordered solids)