| 温梯法生长的Ti:Al2O3晶体的光谱分析 |
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| 引用本文： | 章佶,孙真荣,王祖赓,司继良,王静雅,杭寅,徐军.温梯法生长的Ti:Al2O3晶体的光谱分析[J].人工晶体学报,2005,34(4):657-660,681. |
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| 作者姓名： | 章佶 孙真荣 王祖赓 司继良 王静雅 杭寅 徐军 |
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| 作者单位： | 1. 华东师范大学物理系,光谱学与波谱学教育部重点实验室,上海,200062
2. 中国科学院上海光学精密机械研究所,上海,201800 |
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| 基金项目： | 国家自然科学基金（No.60478024）资助项目 |
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| 摘 要： | 本文研究了不同掺Ti^3＋浓度对温梯法生长的Ti：Al2O3晶体吸收光谱、荧光光谱和X射线衍射光谱的影响。根据吸收光谱提出了一个色心模型。对比了样品各处420nm荧光谱，发现掺Ti^3＋浓度越大，该处荧光强度越弱，同时解释了420肿处荧光峰的起源。对比了样品各处720nm处的荧光谱，发现掺Ti^3＋浓度越大，该处荧光强度越强。X射线衍射谱（XRD）表明，衍射峰强度随掺Ti^3＋浓度的增大而逐渐增强。
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| 关 键 词： | Ti^3＋ Al2O3 色心 光谱 温度梯度法 |
| 文章编号： | 1000-985X（2005）04-0657-04 |
| 收稿时间： | 2005-01-20 |
| 修稿时间： | 2005-01-20 |
Spectral Analysis of Ti:Al2O3 Crystal Grown by Temperature Gradient Technique |
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| ZHANG Ji,Sun Zhen-Rong,WANG ZU-GENG,SI Ji-liang,WANG Jing-ya,HANG Yin,XU Jun.Spectral Analysis of Ti:Al2O3 Crystal Grown by Temperature Gradient Technique[J].Journal of Synthetic Crystals,2005,34(4):657-660,681. |
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| Authors: | ZHANG Ji Sun Zhen-Rong WANG ZU-GENG SI Ji-liang WANG Jing-ya HANG Yin XU Jun |
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| Abstract: | Al_2O_3 single crystals doped with different concentrations of Ti~(3+) were grown by temperature gradient technique (TGT). The absorption spectra, fluorescence spectra and XRD spectra were measured and analyzed. A color-center model was proposed to successfully explain the experimental results of the absorption spectra. The intensity of the fluorescence peak at 420nm decreases, and the intensity of the fluorescence peak at 720nm increases as the concentration of Ti~(3+) increase. XRD spectra show that the intensity of diffraction peak increases with increase of Ti~(3) concentration. |
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| Keywords: | Ti~(3+):Al_2O_3 color-center optical spectroscopy temperature gradient technique |
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