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Towards Sub-TeV electron beams driven by ultra-short, ultra-intense laser pulses

Published online by Cambridge University Press:  04 May 2012

WEI-MIN WANG
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
ZHENG-MING SHENG
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected]) Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China
SHIGEO KAWATA
Affiliation:
Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan
CHUN-YANG ZHENG
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
YU-TONG LI
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
LI-MING CHEN
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
QUAN-LI DONG
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
XIN LU
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
JING-LONG MA
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected])
JIE ZHANG
Affiliation:
Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China ([email protected]) Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract

Energetic electron beam generation from a thin foil target by the ponderomotive force of an ultra-intense circularly polarized laser pulse is investigated. Two-dimensional particle-in-cell (PIC) simulations show that laser pulses with intensity of 1022–1023 Wcm−2 generate about 1–10 GeV electron beams, in agreement with the prediction of one-dimensional theory. When the laser intensity is at 1024–1025 Wcm−2, the beam energy obtained from PIC simulations is lower than the values predicted by the theory. The radiation damping effect is considered, which is found to become important for the laser intensity higher than 1025 Wcm−2. The effect of laser focus positions is also discussed.

Type
Papers
Copyright
Copyright © Cambridge University Press 2012

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