Optimal injection scheme for electron acceleration by a tightly focused laser beam

doi:10.1088/1009-1963/14/7/024

中国物理B ›› 2005, Vol. 14 ›› Issue (7): 1407-1412.doi: 10.1088/1009-1963/14/7/024

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Optimal injection scheme for electron acceleration by a tightly focused laser beam

陈民, 盛政明, 张杰

Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China

收稿日期:2004-12-06 修回日期:2005-01-10 出版日期:2005-06-22 发布日期:2005-06-22
基金资助:
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).

Optimal injection scheme for electron acceleration by a tightly focused laser beam

Chen Min (陈民), Sheng Zheng-Ming (盛政明), Zhang Jie (张杰)

Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100080, China

Received:2004-12-06 Revised:2005-01-10 Online:2005-06-22 Published:2005-06-22
Supported by:
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).

摘要/Abstract

摘要： 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.

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.

Key words: laser acceleration, particle acceleration, plasmas, energy gain

中图分类号: (Beam characteristics: profile, intensity, and power; spatial pattern formation)

42.60.Jf

52.38.-r (Laser-plasma interactions)

陈民, 盛政明, 张杰. Optimal injection scheme for electron acceleration by a tightly focused laser beam[J]. 中国物理B, 2005, 14(7): 1407-1412.

Chen Min (陈民), Sheng Zheng-Ming (盛政明), Zhang Jie (张杰). Optimal injection scheme for electron acceleration by a tightly focused laser beam[J]. Chinese Physics, 2005, 14(7): 1407-1412.

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Optimal injection scheme for electron acceleration by a tightly focused laser beam

Optimal injection scheme for electron acceleration by a tightly focused laser beam

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