| 掺铑BaTiO_3晶体的二波耦合特性 |
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| 引用本文： | 许心光,牟晓东,邵宗书,胡居广. 掺铑BaTiO_3晶体的二波耦合特性[J]. 山东大学学报(理学版), 1998, 0(1) |
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| 作者姓名： | 许心光 牟晓东 邵宗书 胡居广 |
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| 作者单位： | 山东大学晶体材料国家重点实验室 |
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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： | 对ＢａＴｉＯ３：Ｒｈ晶体中的相向和前向二波耦合特性进行了实验观测，并进行了理论分析．结果表明，掺铑ＢａＴｉＯ３晶体相向二波耦合（ＣＴＷＭ）能量转移特性与前向二波耦合（ＦＴＷＭ）能量转移特性存在较大差别．二波耦合的能量转移方向不仅依赖于光生载流子的电荷符号，而且与光折变晶体的电光系数各分量的相对大小有关．ＣＴＷＭ的能量转移方向与电光系数各分量的关系十分密切．
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| 关 键 词： | 光折变；BaTiO_3晶体；二波耦合；相向二波耦合；前向二波耦合 |
COUPLING CHARACTERISTICS OF TWO WAVE MIXING IN Rh DOPED BaTiO 3 CRYSTAL |
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| Abstract: | Characteristics of two wave mixing in Rh doped BaTiO 3 crystal are investigated.The results of experiment and theoretical analysis show that the energy transfer characteristics of contradirectional two wave mixing(CTWM) have much differences 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 charge sign of the light induced carriers,but also on the electro optic coefficients.Theoretical analysis of CTWM is in agreement with the experimental observations well. |
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