| 石英玻璃中5.0 eV吸收带的起源 |
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| 引用本文： | 贾天卿,陈鸿,吴翔.石英玻璃中5.0 eV吸收带的起源[J].光学学报,2000,20(3):23-427. |
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| 作者姓名： | 贾天卿 陈鸿 吴翔 |
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| 作者单位： | 同济大学波耳固体物理研究所,上海,200092 |
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| 基金项目： | 国家科委 86 3高技术资助项目 |
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| 摘 要： | 从吸收强度的角度出发研究石英玻璃中５．０ｅＶ光吸收带的起源。利用实验和理论给出的非驰豫氧空位缺陷态的能级，并以第一原理计算得到的石英玻璃导带电子态密度为基础，计算了５．０ｅＶ线性吸收系数。理论结果与实验结果符合得比较好，人而支持了非驰豫氧空位缺陷态是石英玻璃中５．０ｅＶ光吸收带的起源的观点。
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| 关 键 词： | 5.0eV光吸收带 石英玻璃 线性吸收系数 |
| 收稿时间： | 1998/10/5 |
Defect Precursors of 5.0 eV Absorption Band in Fused Silica |
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| Jia Tianqing,Chen Hong,Wu Xiang.Defect Precursors of 5.0 eV Absorption Band in Fused Silica[J].Acta Optica Sinica,2000,20(3):23-427. |
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| Authors: | Jia Tianqing Chen Hong Wu Xiang |
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| Abstract: | Based on the concentration of no relaxed oxygen deficient center obtained from experiments and the density of states of conduction band electrons calculated by the first principles, the 5.0 eV linear absorption coefficient of fused silica is presented. The calculated result is coincident with experiments very well, which supports the proposal that no relaxed oxygen deficient center is the defect precursors of 5.0 eV absorption band in fused silica. |
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| Keywords: | eV absorption band un relaxed oxygen deficient center fused silica linear absorption coefficient |
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