| 不同切型BaTiO3晶体二波耦合特性研究 |
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| 引用本文： | 许心光,牟晓东,胡居广,邵宗书,徐海清,罗豪苏,仲维卓.不同切型BaTiO3晶体二波耦合特性研究[J].光学学报,1999,19(6):71-776. |
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| 作者姓名： | 许心光 牟晓东 胡居广 邵宗书 徐海清 罗豪苏 仲维卓 |
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| 作者单位： | 1. 山东大学晶体材料国家重点实验室,济南,250100
2. 中国科学院上海硅酸盐研究所,上海,201800 |
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| 基金项目： | 国家攀登计划,国家自然科学基金 |
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| 摘 要： | 分析了光折变晶体的电光系数对二波耦合特性的影响，二波耦合能量转移方向不仅依赖于晶体中光生载流子的电荷符号以及入射光与晶体ｃ轴的相对取向，而且依赖于晶体光系数各分量的相对大小；这种特性别明显地表现在相向二波耦合作用中。
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| 关 键 词： | 光折变 BaTiO3晶体 前向二波耦合 相向二波耦合 电光系数 |
| 收稿时间： | 1998/4/9 |
Coupling Characteristics of Two-Wave Mixing in Different Cut Type BaTiO3 |
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| Xu Xinguang,Mu Xiaodong,Hu Juguang,Shao Zongshu,Xu Haiqing,Luo Haosu,Zhong Weizhuo.Coupling Characteristics of Two-Wave Mixing in Different Cut Type BaTiO3[J].Acta Optica Sinica,1999,19(6):71-776. |
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| Authors: | Xu Xinguang Mu Xiaodong Hu Juguang Shao Zongshu Xu Haiqing Luo Haosu Zhong Weizhuo |
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| Abstract: | Characteristics of two-wave mixing in different BaTiO3 crystal are investigated. The results of experimental and theoretical analysis show that the energy transfer characteristics of contradirectional two-wave mixing (CTWM) is different from forward two-wave mixing (FTWM). The energy transfer direction of TWM depends not only on the orientation of the crystal c axis and the sign of the light-induced carriers, but also on the electro-optic coefficients. The experimental observation is in good agreement with theoretical analysis of CTWM in the crystal of 0°-cut type and 45°-cut type. |
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| Keywords: | photorefractions BaTiO 3 two wave mixing contradirectional two wave mixing forward two wave mixing electro optic coefficients |
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