| 钨酸锌晶体的受激拉曼散射和光致发光研究 |
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| 引用本文： | 臧竞存,谢丽艳,李晓,张东香,冯宝华.钨酸锌晶体的受激拉曼散射和光致发光研究[J].物理学报,2007,56(5):2689-2692. |
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| 作者姓名： | 臧竞存 谢丽艳 李晓 张东香 冯宝华 |
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| 作者单位： | (1)北京工业大学材料科学与工程学院，北京 100022; (2)中国科学院物理研究所光物理实验室，北京 100080 |
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| 基金项目： | 中国科学院物理研究所光物理重点实验室资助课题 |
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| 摘 要： | 采用皮秒532nm 激光激发，研究了ZnWO4晶体的受激拉曼散射和本征荧光发射.在SRS光谱中观察到一级(558.7nm)和二级(588.6nm)斯托克斯光，线宽分别为130和77cm－1, 一级斯托克斯光的抽运阈值为6.8mJ.在532nm激光抽运下ZnWO4晶体的荧光光谱呈现出由能量为2.30，2.45和2.83eV的3个高斯分量组成的独特结构.光致发光表明晶体具有从400nm到650nm的宽带本征发光，其峰值波长为472.0nm，相应于钨氧之间的辐射跃迁.
关键词：
晶体
钨酸锌
受激拉曼散射
闪烁体
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| 关 键 词： | 晶体 钨酸锌 受激拉曼散射 闪烁体 |
| 文章编号： | 1000-3290/2007/56(05)/2689-04 |
| 收稿时间： | 2006-07-12 |
| 修稿时间： | 07 12 2006 12:00AM |
Investigating of SRS and luminescence of ZnWO4 crystals |
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| Zang Jing-Cun,Xie Li-Yan,Li Xiao,Zhang Dong-Xiang,Feng Bao-Hua.Investigating of SRS and luminescence of ZnWO4 crystals[J].Acta Physica Sinica,2007,56(5):2689-2692. |
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| Authors: | Zang Jing-Cun Xie Li-Yan Li Xiao Zhang Dong-Xiang Feng Bao-Hua |
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| Institution: | 1. College of Materials Science and Engineering, Belling University of Technology, Beijing 100022, China ; 2. Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | The stimulated Raman scattering (SRS) and luminescence spectra of ZnWO_4 crystals were investigated using 532nm laser excitation at room temperature. It was found that the first order (558.7nm) and second order (588.6nm) of SRS have 130 and 77cm~ -1 line widths and the pump threshold at 558.7nm is 6.8mJ. The luminescence spectrum of ZnWO_4 crystals under 532nm laser excitation has the peculiarity of having the band structure composed of three-Gaussian components. The photoluminescence spectrum shows broadband emission from 400nm to 650nm peaked about 472.0nm, which is attributed to the radiative transitions between tungsten and oxygen. |
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| Keywords: | crystals zinc tungstate SRS scintillator |
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