| Bi12TiO20晶体的全息性能 |
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| 引用本文： | 廖红波 徐良瑛. Bi12TiO20晶体的全息性能[J]. 无机材料学报, 1994, 9(4): 385-390 |
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| 作者姓名： | 廖红波 徐良瑛 |
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| 作者单位： | 中国科学院上海硅酸盐研究所 |
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| 摘 要： | Ｂｉ１２ＴｉＯ２０晶体是一种优良的全息记录材料。本论文对纯Ｂｉ１２ＴｉＯ２０和掺Ｃｅ∶Ｂｉ１２ＴｉＯ２０晶体的衍射效率、半波电压、旋光度等性能进行了测试，并讨论了掺入的Ｃｅ对晶体性能的影响，Ｃｅ＾４＋离子在晶体中取代Ｂｉ＾３＋离子形成新的区域中心。此外还探讨了Ｔｉ原子对晶体旋光度的影响，认为Ｂｉ１２ＴｉＯ２０晶体旋光度远小于Ｂｉ１２ＳｉＯ２０、Ｂｉ１２ＧｅＯ２０的根本原因在于Ｔｉ原子的性质和极化不
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| 关 键 词： | BTO晶体 衍射效率 旋光度 全息记录材料 |
Holographic Properties of Bi_(12)TiO_(20) Crystal |
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| Liao Hongbo,Xu Liangying. Holographic Properties of Bi_(12)TiO_(20) Crystal[J]. Journal of Inorganic Materials, 1994, 9(4): 385-390 |
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| Authors: | Liao Hongbo Xu Liangying |
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| Abstract: | Bi(12)TiO(20) is a kind of high quality material for holographic record. In this paper, the diffraction coefficiency, half-wave voltages and optical activities of qure-Bi(12)TiO(20)and Ce:Bi(12)TiO(20) have been measured. It is discussed that low content Ce doped in crystal influences its properties, and it is considered that Ce(4+) ions in crystals take the place of Bi(3+) ions to form new local centres. In addition, the influence of Ti on crystal's optical activity has been researched. The reason that the optical activity of Bi(12)TiO(20)is much less than that of Bi(12)SiO(20), Bi(12)GeO(20) lies in the properties and the polarization of Ti atom being very different from St, Ge. |
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| Keywords: | Bi(12)TiO(20) diffraction efficiency half-wave voltage optical activity |
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