The characteristics of an intense laser beam propagating in a corrugated plasma channel

The propagation of an intense laser beam in a corrugated plasma channel is investigated. By using the source-dependent expansion technique, an evolution equation of the laser spot size is derived. The behaviors including aperiodic oscillation, resonance, beat-like wave, and periodic oscillation with...

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Bibliographic Details
Published in:Physics of plasmas 2016-12, Vol.23 (12)
Main Authors: Tian, Jian-Min, Tang, Rong-An, Hong, Xue-Ren, Yang, Yang, Wang, Li, Zhou, Wei-Jun, Xue, Ju-Kui
Format: Article
Language:English
Subjects:
Computer simulation
Laser beams
Lasers
Plasma physics
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Summary:The propagation of an intense laser beam in a corrugated plasma channel is investigated. By using the source-dependent expansion technique, an evolution equation of the laser spot size is derived. The behaviors including aperiodic oscillation, resonance, beat-like wave, and periodic oscillation with multipeak are found and analyzed. The formula for the instantaneous wave numbers of these oscillations is obtained. These theoretical findings are confirmed by the final numerical simulation.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4972545