| Transparent Ni^2＋-Doped MgO-Al2O3-SiO2 Glass Ceramics with Broadband Infrared Luminescence |
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| 引用本文： | 吴伯涛,周时凤,邱建荣,彭明营,杨旅云,姜雄伟,朱从善.Transparent Ni^2＋-Doped MgO-Al2O3-SiO2 Glass Ceramics with Broadband Infrared Luminescence[J].中国物理快报,2006,23(10):2778-2781. |
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| 作者姓名： | 吴伯涛 周时凤 邱建荣 彭明营 杨旅云 姜雄伟 朱从善 |
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| 作者单位： | [1]State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 [2]Graduate School of the Chinese Academy of Sciences, Beijing 100039 [3]Department of Materials Science, Zhejiang University, Hangzhou 310027 |
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| 摘 要： | We report on transparent Ni^2＋-doped MgO-Al2O3-SiO2 glass ceramics with broadband infrared luminescence. Ni^2＋-doped MgO-Al2O3-SiO2 glass is prepared by using the conventional method. After heat treatment at high temperature, MgAl2O4 crystallites are precipitated, and their average size is about 4.3 nm. No luminescence is detected in the as-prepared glass sample, while broadband infrared luminescence centred at around 1315 nm with full width at half maximum （FWHM） of about 300 nm is observed from the glass ceramics. The observed infrared emission could be attributed to the ^3T2g（^3F）→^3A2g（^3F） transition of octahedral Ni^2＋ ions in the MgAl2O4 crystallites of the transparent glass ceramics. The product of the fluorescence lifetime and the stimulated emission cross section is about 1.6×10^-24 s cm^2.
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| 关 键 词： | 透明性 玻璃制陶业 宽带 红外发光性 MgAl2O4微晶体 |
| 收稿时间： | 2006-04-26 |
| 修稿时间： | 2006-04-26 |
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