| Ti：Al_2O_3晶体荧光浓度猝灭及其能量转移机理 |
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| 引用本文： | 刘建华,张强,邓佩珍,干福熹.Ti：Al_2O_3晶体荧光浓度猝灭及其能量转移机理[J].中国激光,1994,21(7):576-580. |
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| 作者姓名： | 刘建华 张强 邓佩珍 干福熹 |
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| 作者单位： | 中国科学院上海光机所 |
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| 摘 要： | 根据Ｄｅｘｔｅｒ敏化发光理论建立Ｔｉ３＋－Ｔｉ３＋离子间能量共振转移模型，计算出Ｔｉ：Ａｌ２Ｏ３晶体发生浓度猝灭的Ｔｉ３＋离子临界距离Ｒｃ及晶体掺杂的临界浓度Ｎｃ与实测光谱数据进行比较，认为浓度达到Ｎ＝１．２８×１０２０ｃｍ－３（或０．３８ｗｔ％），相应峰值吸收系数为α４９０＝６．０ｃｍ－１时，仍未发生明显的浓度猝灭现象。
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| 关 键 词： | Ti：Al_20_3晶体，浓度猝灭，能量转移 |
| 收稿时间： | 1993/8/5 |
Concentration Quenching Of Ti: Al_2O_3 Crystal and Mechanism of Resonance Energy Transferring |
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| Liu Jianhua, Deng Peizhen,Gan Fuxi.Concentration Quenching Of Ti: Al_2O_3 Crystal and Mechanism of Resonance Energy Transferring[J].Chinese Journal of Lasers,1994,21(7):576-580. |
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| Authors: | Liu Jianhua Deng Peizhen Gan Fuxi |
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| Abstract: | A model of resonance energy transferring among Ti3 ions in Ti: A12O3 crystalwas setup according the Dexter theory of sensitization luminescence, from with the criticaldistance R. of Ti3 ions were estimated, between which concentration quenching could takeplace and the correspondent doping concentration N.' By the comparison with the measuredspectra data,obvious concentration quenching has not been observed even if the doping levelreaches 1.28 X 1020 cm-3 (or 0. 38wt% ). |
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| Keywords: | Ti: Al_2O_3 concentration quenching energy transfer |
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