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Electrons Oscillation in the Intense Laser Produced Three-dimensional Post-soliton Electromagnetic Field |
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- D.N. Yue, M. Chen, X.H. Yuan
LLP, Shanghai, People's Republic of China
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Electron oscillations in the three-dimensional postsoliton electromagnetic field generated by ultrashort intense laser in near-critical density plasma were studied using 3D particle-in-cell (PIC) simulations. Two types of post-solitons were observed. We found that unlike the ions, which are expelled from the centre of post-soliton, electrons oscillate around the centre of a post-soliton and the resultant poloidal electric vector field behaves like an oscillating electric dipole. The toroidal magnetic field also oscillates along with electrons. On the timescale of ��� −1, where ��� is the ion plasma frequency, protons have evolved into multi-shell structures due to Coulomb explosion in the post-soliton. The polarization of the postsoliton is found to be different from that of the driver laser beam
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reference for this paper
※ https://doi.org/10.18429/JACoW-SAP2017-TUDH3
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