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Proceedings Paper

Hot electrons in femtosecond laser-plasma interaction
Author(s): Jie Zhang; Tianjiao Liang; Yutong Li; Liming Chen; Li Wang; Jiangfan Xia; Zhiyi Wei; Lizheng Zhao
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Paper Abstract

The behaviors of hot electrons in femtosecond laser-plasma interaction have been studied systematically under laser irradiance of 5 X 1015 Wcm-2micrometers 2. A very directional jet emission of hot electrons with energies above 170 keV has been observed in the normal direction to the target surface. The angular distribution of the jet emission of hot electrons has been found to be dependent on the energy of hot electrons. By measuring the Faraday rotation angle of the backscattered emission, a magnetic field in the axial direction has been detected for the first time. The maximum value of the magnetic field was estimated to be as high as 1.76 +/- 0.7 Mgauss at such a modest irradiance. It is believed that this axial magnetic field is generated by the dynamo effect in the laser-plasma interaction.

Paper Details

Date Published: 11 January 2000
PDF: 10 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375125
Show Author Affiliations
Jie Zhang, Institute of Physics (China)
Tianjiao Liang, Institute of Physics (China)
Yutong Li, Institute of Physics (China) and Institute of Nuclear Physics and Chemistry (China)
Liming Chen, Institute of Physics (China) and Institute of Nuclear Physics and Chemistry (China)
Li Wang, Institute of Physics (China)
Jiangfan Xia, Institute of Physics (Canada)
Zhiyi Wei, Institute of Physics (China)
Lizheng Zhao, Institute of Physics (China)


Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

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