Local oscillating electron heating mechanism during laser plasma interaction

ma yan-yun; chang wen-wei; huang wei; zhuo hong-bing; yin yan

Volume 17 Issue 01

Jan. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(01): 0-

zhang wei, wu jian-hong, li chao-ming. Effect of wavefront aberration of grating on pulse compression[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

ma yan-yun, chang wen-wei, huang wei, et al. Local oscillating electron heating mechanism during laser plasma interaction[J]. High Power Laser and Particle Beams, 2005, 17.

zhang wei, wu jian-hong, li chao-ming. Effect of wavefront aberration of grating on pulse compression[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

ma yan-yun, chang wen-wei, huang wei, et al. Local oscillating electron heating mechanism during laser plasma interaction[J]. High Power Laser and Particle Beams, 2005, 17.

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Local oscillating electron heating mechanism during laser plasma interaction

1.
Department of Applied Physics,College of Science,National University of Defense Technology,Changsha 410073,China;
2.
College of Computer,National University of Defense Technology,Changsha 410073,China

Publish Date: 2005-01-15

Abstract

Abstract

The interaction between laser and plasma has been studied using a 2.5 dimensional particle simulation code. The results show that electrons are accelerated by J×B heating mechanism and a strong electrostatic field is caused by charge separation, which has a potential well structure. Electrons are oscillating in electrostatic field potential wells and can be accelerated many times. Some electrons with higher velocity escape from potential wells, so that charge separation becomes stronger and stronger, and then electrostatic fields break up and electrons get the energy of electrostatic field. During the process, electrons are oscillating locally and accelerated, their relativistic kinetic energy can reach over 10 MeV. This is a new kind of heating mechanism and is named local oscillating el
- laser plasma interaction,
- particle simulation,
- electron acceleration,
- local oscillating

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