| 激光上转换玻璃陶瓷材料中稀土杂质Yb^3＋和Tm^3＋局域行为 |
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| 引用本文： | 孔祥贵,许武.激光上转换玻璃陶瓷材料中稀土杂质Yb^3＋和Tm^3＋局域行为[J].发光学报,1999,20(4):305-310. |
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| 作者姓名： | 孔祥贵 许武 |
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| 作者单位： | [1]中国科学院激发态物理开放研究实验室 [2]中国科学院长春物理研究所 |
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| 基金项目： | 国家“863”重点基金 |
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| 摘 要： | 对红光上转换玻璃陶资ＰｂＦ２＋ＷＯ３＋ＧｅＯ２以及ＰｂＦ２＋ＷＯ３＋ＧｅＦ３＋ＴｍＦ３材料中的微晶相进行了喇曼光谱研究，获得了光谱表明ＰｂＦ２＋ＷＯ３＋ＧｅＯ２＋ＹｂＦ３＋ＴｍＦ３中的微晶是由ＰｂＦ：Ｙｂ＾３＋、Ｔｍ＾３＋构成的，其中Ｙｂ＾３＋和Ｔｍ＾３＋替代部分Ｐｂ＾２＋的格位而形成了荷正电的局域杂质中心。这些局域杂质中心导致了ＰｂＦ２＋ＷＯ３＋ＧｅＯ２＋ＹｂＦ３＋ＴｍＦ３中局域电场的形成。除了
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| 关 键 词： | 上转换 玻璃陶瓷 局域行为 激发材料 |
LOCAL ACTIONS OF REAR EARTH Yb ANDTm IN GLASS CERAMICS USEDAS LASER UPCONVERSION |
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| KONG Xianggui,XU Wu, CHEN Bacjiu, HUANG Shihua, FAN Xiwu.LOCAL ACTIONS OF REAR EARTH Yb ANDTm IN GLASS CERAMICS USEDAS LASER UPCONVERSION[J].Chinese Journal of Luminescence,1999,20(4):305-310. |
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| Authors: | KONG Xianggui XU Wu CHEN Bacjiu HUANG Shihua FAN Xiwu |
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| Abstract: | Raman scattering was used to investigate the microcrystal region in glass ceramicsPbF2+WO3 +GeO2 and PbF2+ WO3 + GeO2 doped with YbF3 and TmF3. The spectraobtained show that this micro-crystal region in the PbF2+WO3+GeO2 is with the composition of PbF2: Yb3+, Tm3+, in which the Yb3+and Tm3+ ions are substituted forPb2+ resulting in some charged centers located at these impurities. These charged centers induce a local electric field which brings about: (1) some new Raman effects in addition to the Raman effects induced by the modulation of polarizability from vibrations ofmicro-crystal lattice, and (2) the consistency of all directions of the symmetry axes ofmicrocrystal in PbF2+WO3+GeO2. |
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| Keywords: | upconversion glass ceramics local action |
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