中国物理B ›› 2002, Vol. 11 ›› Issue (6): 613-618.doi: 10.1088/1009-1963/11/6/318

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Spectroscopic properties of Nd-doped phosphate glass with a high emission cross section

孙真荣1, 蒋秀丽1, 邓佩珍2, 干福熹2, 毛艳丽3   

  1. (1)Department of Physics, East China Normal University, Shanghai 201800, China; (2)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; (3)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Department of Physics, Henan University, Kaifeng 475001, China
  • 收稿日期:2001-12-20 修回日期:2002-01-26 出版日期:2002-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 69988006).

Spectroscopic properties of Nd-doped phosphate glass with a high emission cross section

Mao Yan-Li(毛艳丽)ab, Sun Zhen-Rong (孙真荣)c, Jiang Xiu-Li (蒋秀丽)c, Deng Pei-Zhen (邓佩珍)a, Gan Fu-Xi (干福熹)a    

  1. a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Department of Physics, Henan University, Kaifeng 475001, China; c Department of Physics, East China Normal University, Shanghai 201800, China
  • Received:2001-12-20 Revised:2002-01-26 Online:2002-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 69988006).

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摘要： Neodymium doped phosphate glasses have been prepared by the semi-continuous melting technique. Their absorption and emission spectra have been recorded at room temperature. The Judd－Ofelt theory has been applied to evaluate the stimulated emission cross sections of 4F3/2→4I11/2 transition for Nd3+. The higher stimulated emission cross section, 4.0×10-20cm2, is obtained. The fluorescence decays of the 4F3/2→4I11/2 transition of Nd3+ are measured for the samples doped (0.7－10) wt% of Nd2O3 at room temperature. The concentration quenching of Nd-doped phosphate glass is mainly attributed to cross-relaxation and energy migration. The site-dependent properties of fluorescence spectra and the fluorescence lifetime of the Nd3+-doped phosphate glass (with 2.2wt%Nd2O3) are studied using laser-induced fluorescence line narrowing techniques, and the site-to-site variations of optical properties are observed at low temperature.

关键词: Nd3+ ions, phosphate glass, emission cross section, fluorescence line narrowing

Abstract: Neodymium doped phosphate glasses have been prepared by the semi-continuous melting technique. Their absorption and emission spectra have been recorded at room temperature. The Judd－Ofelt theory has been applied to evaluate the stimulated emission cross sections of 4F3/2→4I11/2 transition for Nd3+. The higher stimulated emission cross section, 4.0×10-20cm2, is obtained. The fluorescence decays of the 4F3/2→4I11/2 transition of Nd3+ are measured for the samples doped (0.7－10) wt% of Nd2O3 at room temperature. The concentration quenching of Nd-doped phosphate glass is mainly attributed to cross-relaxation and energy migration. The site-dependent properties of fluorescence spectra and the fluorescence lifetime of the Nd3+-doped phosphate glass (with 2.2wt%Nd2O3) are studied using laser-induced fluorescence line narrowing techniques, and the site-to-site variations of optical properties are observed at low temperature.

Key words: Nd3+ ions, phosphate glass, emission cross section, fluorescence line narrowing

中图分类号:  (Stimulated emission)

  • 78.45.+h
78.55.Qr (Amorphous materials; glasses and other disordered solids) 78.66.Jg (Amorphous semiconductors; glasses)