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Energy dissipation of ion beam in two-component plasma in the presence of laser irradiation

Published online by Cambridge University Press:  11 July 2011

Zhang-Hu Hu ,
Yuan-Hong Song ,
Z.L. Mišković  and
You-Nian Wang
Zhang-Hu Hu
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
Yuan-Hong Song
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
Z.L. Mišković
Affiliation:
Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, Canada
You-Nian Wang*
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
*
Address correspondence and reprint requests to: You-Nian Wang, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China116024. E-mail: ynwang@dlut.edu.cn
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Abstract

We use a two-dimensional particle-in-cell simulation to investigate the dynamic polarization and stopping power for an ion beam propagating through a two-component plasma, which is simultaneously irradiated by a strong laser pulse. Compared to the laser-free case, we observe a reduction in the instantaneous stopping power that initially follows the shape of the laser pulse and becomes particularly large as the laser frequency approaches the plasma electron frequency. We attribute this large reduction in the ion stopping power to an increase in plasma temperature due to the energy absorbed in the plasma from the laser pulse through the process of wave heating. In addition, dynamic polarization of the plasma by the ion is found to be strongly modulated by the laser field.

Keywords

Energy lossLaserTwo-component plasma
Type
Research Article
Information
Laser and Particle Beams , Volume 29 , Issue 3 , September 2011 , pp. 299 - 304
Copyright
Copyright © Cambridge University Press 2011

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