| 超短电子脉冲在聚焦强激光场中的三维有质动力散射 |
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| 引用本文： | 刘运全,张杰,武慧春,盛政明.超短电子脉冲在聚焦强激光场中的三维有质动力散射[J].物理学报,2006,55(3):1176-1180. |
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| 作者姓名： | 刘运全 张杰 武慧春 盛政明 |
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| 作者单位： | 中国科学院物理研究所光物理重点实验室，北京 100080 |
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| 基金项目： | 中国科学院资助项目;国家自然科学基金 |
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| 摘 要： | 采用三维测试粒子模拟(test-padicle simulation)的方法，研究了聚焦的飞秒脉冲强激光与超短电子束进行有质动力的散射过程.详细讨论了超短电子束经过不同激光延迟下有质动力散射的空间分布特征和能谱特征.提出了通过测量电子束的空间分布和能谱分布实现对超短脉冲电子束的脉冲宽度测量的方法.
关键词：
有质动力散射
聚焦的飞激光
飞秒电子束
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| 关 键 词： | 有质动力散射 聚焦的飞激光 飞秒电子束 |
| 收稿时间： | 2005-05-18 |
Three dimensional pondermotive scattering of ultrashort electron beam in the field of focused ultraintense laser pulse |
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| Liu Yun-Quan,Zhang Jie,Wu Hui-Chun,Sheng Zheng-Ming.Three dimensional pondermotive scattering of ultrashort electron beam in the field of focused ultraintense laser pulse[J].Acta Physica Sinica,2006,55(3):1176-1180. |
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| Authors: | Liu Yun-Quan Zhang Jie Wu Hui-Chun Sheng Zheng-Ming |
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| Institution: | Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Using a three-dimensional test particle simulation code, we study the pondermotive scattering of an ultrashort electron beam subject to a focused ultraintense femtosecond laser pulse. The dependence of the spatial distribution of electron beam and electron energy spectrum on the time delay between laser pulse and electron pulse is discussed in detail. Through the measurement of the spatial distribution of electron beam or electron spectrum, we present a method to measure the duration of an ultrashort electron pulse. |
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| Keywords: | pondermotive scattering focused femtosecond ultraintense laser pulse femtosecond electron pulse |
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