| 布拉格声光衍射场光强空间分布不均匀的研究 |
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| 引用本文： | 刘唤唤,曾晓东,程寅,傅超.布拉格声光衍射场光强空间分布不均匀的研究[J].电子科技,2010,23(3):1-3. |
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| 作者姓名： | 刘唤唤 曾晓东 程寅 傅超 |
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| 作者单位： | （西安电子科技大学 技术物理学院,陕西 西安710071） |
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| 基金项目： | 国家863计划基金资助项目(20060701010) |
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| 摘 要： | 从波动方程出发,结合声光移频器的工作原理,根据声光晶体的有限尺寸,建立声场模型,推导出布拉格声光作用的耦合波方程。有限差分方法分析衍射场光强的空间三维分布。结果表明,声场振幅的不均匀分布会影响声光衍射场的光强分布。
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| 关 键 词： | 声光移频器 布拉格声光衍射场 光强 空间不均匀分布 有限差分法 |
| 收稿时间： | 2009-11-25 |
Study of Inhomogeneous Spatial Distribution of Scattering Light Intensity of Bragg Acousto-optic Interaction |
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| Liu Huanhuan,Zeng Xiaodong,Cheng Yin,Fu Chao.Study of Inhomogeneous Spatial Distribution of Scattering Light Intensity of Bragg Acousto-optic Interaction[J].Electronic Science and Technology,2010,23(3):1-3. |
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| Authors: | Liu Huanhuan Zeng Xiaodong Cheng Yin Fu Chao |
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| Institution: | (School of Technical Physics,Xidian University,Xian 710071,China) |
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| Abstract: | Derived from the wave equation and the principle of acousto-optic frequency shifter,coupled-wave equations of Bragg acousto-optic interaction are obtained,on the basis of a model of the acoustic field which is built in view of the finite size of acousto-optic crystal.The spatial three-dimensional distribution of scattering field is analyzed with finite difference method.It is shown that the diffractive light intensity will be influenced by the inhomogeneous distribution of acoustic amplitude. |
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| Keywords: | acousto-optic frequency shifter Bragg acousto-optical diffractive field spatial inhomogeneous distribution finite difference method |
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