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970nm抽运下Er3+/Yb3+/Tm3+共掺碲酸盐玻璃的发光特性

戴世勋 杨建虎 柳祝平 温 磊 胡丽丽 姜中宏

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970nm抽运下Er3+/Yb3+/Tm3+共掺碲酸盐玻璃的发光特性

戴世勋, 杨建虎, 柳祝平, 温 磊, 胡丽丽, 姜中宏

The luminescence of Er3+,Yb3+,Tm3+-codoped tellurite glass pumped at 970nm

Dai Shi-Xun, Yang Jian-Hu, Liu Zhu-Ping, Wen Lei, Hu Li-Li, Jiang Zhong-Hong
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  • 研究了Er3+/Yb3+共掺、Tm3+/Yb3+共掺、Er3+/Yb3+/Tm3+共掺碲酸盐玻璃在970nm抽运下的荧光光谱和上转换光谱性质,测试了Er3+离子的4I11/2和4I13/2能级荧光寿命变化情况.结果发现Er3+/Yb3+/Tm3+共掺碲酸盐玻璃的常规荧光谱线在1450—1700nm区域明显加宽,并在1630nm有一荧光峰,可能是Tm3+:1G4→3F2跃迁产生.上转换发光研究表明,由于碲酸盐玻璃声子能量低的缘故,三种共掺系统下都存在上转换发光现象.在Er3+/Yb3+/Tm3+共掺中,上转
    The fluorescence and up-conversion spectrum of Er3+/Yb3+, Tm3+/Yb3+, Er3+/Yb3+/Tm3+-codoped tellurite glasses pumped by a 970nm laser diode has been studied. The lifetimes of Er3+:4I11/2 and Er3+: 4I13/2 levels have been measured. It is found that the fluorescence width in the range of 1450—1700nm in Er3+/Yb3+/Tm3+-codoped tellurite glass has been broadened clearly. There is a fluorescence peak at 1630nm which is probably due to Tm3+:1G4→3F2 transitions in Er3+/Yb3+/Tm3+-codoped tellurite glass. Up-conversion phenomena exist in all the three kinds coped tellurite glasses because of its lower phonon energy of host. The addition of Tm3+ in Er3+/Yb3+-codoped tellurite glasses quenches the up-conversion efficiency of Er3+:4S3/2 green and Er3+:4F9/2 red emissions. The quenching effect is due to the energy transfer between Er3+ and Tm3+, especially the cross-relaxation process among them.
    • 基金项目: 国家自然科学基金(批准号:60207006)及上海市科学技术委员会光科技项目(批准号:22261046)资助的课题.
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  • 文章访问数:  6776
  • PDF下载量:  869
  • 被引次数: 0
出版历程
  • 收稿日期:  2002-06-07
  • 修回日期:  2002-08-14
  • 刊出日期:  2005-04-03

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