| Spectroscopic properties of Nd—doped phosphate glass with a high emission cross section |
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| 引用本文： | 毛艳丽,孙真荣,蒋秀丽,邓佩珍,干福熹.Spectroscopic properties of Nd—doped phosphate glass with a high emission cross section[J].中国物理 B,2002,11(6):613-618. |
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| 作者姓名： | 毛艳丽 孙真荣 蒋秀丽 邓佩珍 干福熹 |
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| 作者单位： | (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 |
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| 基金项目： | 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.
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| 关 键 词： | Nd3+ ions phosphate glass emission cross section fluorescence line narrowing |
| 收稿时间： | 2001-12-20 |
Spectroscopic properties of Nd-doped phosphate glass with a high emission cross section |
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| Mao Yan-Li,Sun Zhen-Rong,Jiang Xiu-Li,Deng Pei-Zhen and Gan Fu-Xi.Spectroscopic properties of Nd-doped phosphate glass with a high emission cross section[J].Chinese Physics B,2002,11(6):613-618. |
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| Authors: | Mao Yan-Li Sun Zhen-Rong Jiang Xiu-Li Deng Pei-Zhen and Gan Fu-Xi |
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| Institution: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Department of Physics, Henan University, Kaifeng 475001, China; Department of Physics, East China Normal University, Shanghai 201800, China |
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| 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. |
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| Keywords: | Nd3+ ions phosphate glass emission cross section fluorescence line narrowing |
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