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Chinese Physics, 2005, Vol. 14(7): 1407-1412    DOI: 10.1088/1009-1963/14/7/024
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES Prev   Next  

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
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.
Keywords:  laser acceleration      particle acceleration      plasmas      energy gain  
Received:  06 December 2004      Revised:  10 January 2005      Accepted manuscript online: 
PACS:  42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)  
  52.38.-r (Laser-plasma interactions)  
Fund: 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).

Cite this article: 

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 2005 Chinese Physics 14 1407

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