| 双掺(V，Cr):KNSBN晶体光诱导吸收研究 |
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| 引用本文： | 张曰理,李辉遒,阳生红.双掺(V，Cr):KNSBN晶体光诱导吸收研究[J].中山大学学报(自然科学版),2000,39(4):43-46. |
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| 作者姓名： | 张曰理 李辉遒 阳生红 |
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| 作者单位： | 中山大学凝聚态物理研究所/物理学系!广东广州510275 |
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| 基金项目： | 广东省自然科学基金资助项目!(980 36 4 ) |
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| 摘 要： | 成功地生长、制备出了双掺 (V ,Cr)钾钠铌酸锶钡晶体样品 .测量了不同光强和光偏振下的光诱导吸收变化 .实验结果显示 ,双掺 (V ,Cr)钾钠铌酸锶钡晶体具有很高的光诱导吸收系数 ,其值高达 3cm- 1 ,且光诱导吸收依赖于泵浦束光强和探测束光偏振 .对实验结果用两中心电荷传输模型进行了解释 .
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| 关 键 词： | 光折变晶体 钾钠铌酸锶钡 光诱导吸收 |
Light-induced Absorption in Double-doped (V,Cv) Potassium Sodium Strontium Barium Niobate |
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| ZHANG Yue-liInstitute of Condensed Matters/.Light-induced Absorption in Double-doped (V,Cv) Potassium Sodium Strontium Barium Niobate[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2000,39(4):43-46. |
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| Authors: | ZHANG Yue-liInstitute of Condensed Matters/ |
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| Institution: | ZHANG Yue-liInstitute of Condensed Matters/Department of Physics,Zhongshan University,Guangzhou 510275,China,LI Hui-qiu,YANG Sheng-hong,MO Dang |
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| Abstract: | The double-doped (V,Cr) potassium sodium strontium barium niobate crystal sample has been successfully grown and prepared. Measurements of light-induced absorption changes in double-doped (V,Cr)-potassium sodium strontium barium niobate crystal are carried out for different intensities and polarization. It is observed that the light-induced absorption coefficient of the sample depends on the intensity of the pump light beam and the polarization of the probe light beam.A variation as high as 3 cm- -1 of the light-induced absorption coefficient is measured.The results are interpreted in terms of a two-center charge transport model. |
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| Keywords: | photorefractive crystals KNSBN light-induced absorption |
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