| 电子在紧聚焦激光束中加速的最佳入射 |
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| 引用本文： | 陈民,盛政明,张杰.电子在紧聚焦激光束中加速的最佳入射[J].中国物理 B,2005,14(7):1407-1412. |
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| 作者姓名： | 陈民 盛政明 张杰 |
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| 作者单位： | Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China;Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China;Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China |
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| 基金项目： | Project partially supported by the National Natural Science Foundation of China (Grant Nos 10335020,
10105014 and 10390160), the National High-Tech ICF program, and the National Key Basic Research Special Foundation (Grant No G1999075200). |
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| 摘 要： | 通过数值模拟研究了电子在真空紧聚焦激光束中的动力学行为和能量增益。研究发现对应于两种不同的轨迹，电子可以得到纵向和横向两种电场的加速。阐明了电子的能量增益与电子的入射角和入射动量间的关系。对于给定的激光参数，给出了电子的最佳入射参数。
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| 关 键 词： | 激光加速 粒子加速 等离子体 能量增益 |
| 收稿时间： | 2004-12-06 |
Optimal injection scheme for electron acceleration by a tightly focused laser beam |
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| Chen Min,Sheng Zheng-Ming and Zhang Jie.Optimal injection scheme for electron acceleration by a tightly focused laser beam[J].Chinese Physics B,2005,14(7):1407-1412. |
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| Authors: | Chen Min Sheng Zheng-Ming and Zhang Jie |
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| Institution: | Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Electron dynamics and energy gain in a tightly focused laser beam in vacuum are investigated by numerical simulations. There exist two acceleration mechanisms, i.e. acceleration by the longitudinal field or by the transverse field, which corresponds to two different trajectories. The relationship
between the energy gain and the injection parameters of electrons, including the injection angle and momentum, is shown. For given laser parameters, the optimum injection parameters can be obtained. |
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| Keywords: | laser acceleration particle acceleration plasmas energy gain |
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