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Field structure and electron acceleration in a slit laser beam

Published online by Cambridge University Press:  25 January 2010

Y.J. Xie ,
W. Wang ,
L. Zheng ,
X.P. Zhang ,
Q. Kong ,
Y.K. Ho  and
P.X. Wang
Y.J. Xie
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China Shanxi Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, China Northwest Institute of Nuclear Technology, Xi'anChina
W. Wang
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China Shanghai Institute of Laser Plasma, Shanghai, China
L. Zheng
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China
X.P. Zhang
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China
Q. Kong
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China
Y.K. Ho
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China
P.X. Wang*
Affiliation:
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University, Shanghai, China
*
Address correspondence and reprint requests to: P.X. Wang, Fudan University, Institute of Modern Physics, Han Dan Road 220, 200433 Shanghai, China. E-mail: wpx@fudan.edu.cn
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Abstract

The electric field intensity distribution and the phase velocity distribution of a slit in laser beams with different parameters are analyzed. Using three-dimensional test particle simulation, the laser beam with a slit induced acceleration of electrons with different initial momenta is investigated. Contrary to anticipation, the maximum net energy gain is not monotone increasing as the incoming momentum increasing. Based on the field structure and analysis, we gave an explanation for this.

Keywords

Beam structureLaser-driven accelerationPhase velocity

Information

Type
Research Article
Information
Laser and Particle Beams , Volume 28 , Issue 1 , March 2010 , pp. 21 - 26
Copyright
Copyright © Cambridge University Press 2010

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