Paper
11 January 2000 Hot electrons in femtosecond laser-plasma interaction
Jie Zhang, Tianjiao Liang, Yutong Li, Liming Chen, Li Wang, Jiangfan Xia, Zhiyi Wei, Lizheng Zhao
Author Affiliations +
Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375125
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
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.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jie Zhang, Tianjiao Liang, Yutong Li, Liming Chen, Li Wang, Jiangfan Xia, Zhiyi Wei, and Lizheng Zhao "Hot electrons in femtosecond laser-plasma interaction", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375125
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KEYWORDS
Electrons

Magnetism

Plasmas

Aluminum

Femtosecond phenomena

Polarization

Pulsed laser operation

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