| 初始相位对周期量级激光脉冲Thomson散射特性的影响 |
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| 引用本文： | 田友伟,陆云清,邓德刚.初始相位对周期量级激光脉冲Thomson散射特性的影响[J].强激光与粒子束,2008,20(12). |
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| 作者姓名： | 田友伟 陆云清 邓德刚 |
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| 作者单位： | 1. 南京邮电大学 数理学院， 南京 210003；2. 南京邮电大学 光电工程学院， 南京 210003；3. 中国计量学院 材料学院， 杭州 310018 |
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| 基金项目： | 国家自然科学基金，南京邮电大学科研基金，江苏省高校自然科学基础研究项目 |
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| 摘 要： | 用电子Thomson散射的经典理论，研究了周期量级激光脉冲作用下电子Thomson散射的特性，讨论了不同激光强度下，激光脉冲的初始相位对电子辐射的空间分布以及特定方向上频谱分布特性的影响。计算表明:对弱激光脉冲，电子辐射的空间分布类似于偶极天线的对称双叶结构，初始相位对电子的辐射几乎没有影响；而对强激光脉冲，电子辐射的空间分布出现了三叶结构，初始相位对电子的辐射影响非常显著。
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| 关 键 词： | 初始相位 周期量级脉冲 Thomson散射 空间分布 |
| 收稿时间： | 1900-01-01; |
Initial-phase dependence of Thomson scattering spectrum for few-cycle laser pulse |
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| TIAN You-wei,LU Yun-qing,DENG De-gang.Initial-phase dependence of Thomson scattering spectrum for few-cycle laser pulse[J].High Power Laser and Particle Beams,2008,20(12). |
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| Authors: | TIAN You-wei LU Yun-qing DENG De-gang |
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| Institution: | 1. College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;2. College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;3. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China |
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| Abstract: | The scattering of few-cycle laser pulse by single electron has been investigated through the classical theory of Thomson scattering using free electrons.The temporal and spatial characteristics of the radiation are presented for different laser intensity and initial phase.For low power-intensity laser pulses,the radiation pattern is the same as that from a dipole antenna.However the radiation pattern is three leafs for the high laser intensity.The influence of the initial phase on the temporal and spatial characteristics of the radiation is stronger for the high intense laser pulse than for the low intense case. |
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| Keywords: | initial phase few-cycle pulse Thomson scattering spatial distribution |
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