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Ion vortices in ion phase space in intense laser interaction with subcritical plasma

Published online by Cambridge University Press:  20 December 2006

BAIWEN LI ,
S. ISHIGURO ,
M. M. SKORIC ,
M. SONG  and
T. SATO
BAIWEN LI
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
S. ISHIGURO
Affiliation:
National Institute for Fusion Science, Toki 509-5292, Gifu, Japan
M. M. SKORIC
Affiliation:
National Institute for Fusion Science, Toki 509-5292, Gifu, Japan
M. SONG
Affiliation:
Department of Physics, College of Science, China Agricultural University, People's Republic of China
T. SATO
Affiliation:
Earth Simulator Center, JAMSTEC, 3173-25 Showa-cho, Yokohama, Japan
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Abstract

A novel stimulated trapped electron-acoustic wave scattering instability by a linearly polarized laser interacting with a subcritical density plasma layer is observed by particle simulation. Its spectrum in the early stage is well-explained by a resonant three-wave parametric decay process and it takes place whether the ion dynamics are taken into account or not. When ion dynamics are considered, the excitation of the ion electrostatic wave, the generation of the electromagnetic (EM) soliton and the formation of ion vortices due to the large EM soliton, etc., are studied.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 1257 - 1261
Copyright
2006 Cambridge University Press

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