| SBN晶体中Eu~(3+)激发态~5D_0的无辐射跃迁 |
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| 引用本文： | 张桂兰,陈文驹,孙大亮,宋永远,陈焕矗.SBN晶体中Eu~(3+)激发态~5D_0的无辐射跃迁[J].光学学报,1993,13(12):1073-1077. |
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| 作者姓名： | 张桂兰 陈文驹 孙大亮 宋永远 陈焕矗 |
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| 作者单位： | 南开大学现代光学研究所 天津300071
(张桂兰，陈文驹)，山东大学晶体材料研究所 济南250100
(孙大亮，宋永远)，山东大学晶体材料研究所 济南250100(陈焕矗) |
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| 摘 要： | 通过测量~5D_0→~7F_2发射带的荧光寿命与晶体温度的依赖关系,研究了Eu~(3+)激发态~5D_0的无辐射跃迁.结果表明,~5D_0→~7F_2带的温度淬灭效应主要是由于电荷转移态的最低能量太低,~5D_0态易被热激活至电荷转移,然后通过电荷转移无辐射弛豫至~7F_2态.
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| 关 键 词： | SBN晶体 电荷转移态 无辐射跃迁 |
| 收稿时间： | 1992/11/2 |
Radiationless transition of Eu~(3+) excited state ~5D_0 in SBN crystal |
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| ZHANG Guilan CHEN Wenju.Radiationless transition of Eu~(3+) excited state ~5D_0 in SBN crystal[J].Acta Optica Sinica,1993,13(12):1073-1077. |
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| Authors: | ZHANG Guilan CHEN Wenju |
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| Abstract: | In this paper, the radiationless transition of the excited state 5D0 of Eu3+ in SBN crystal has been studied by observing the temperature dependence of the fluorescence lifetime of 5A0→7F2 emission band. The temperature quenching effect of 5D0→7F2 band is mainly due to that the minmum energy of the charge-tranfer state (CTS) of Eu3+ is so low that 5D0 state can be activated thermally to CTS and then transfers to 7F state via CTS with radiationless transition. |
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| Keywords: | SBN crystal charge-transfer state radiationless transition |
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