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          Institute: MPI für Quantenoptik     Collection: Theory     Display Documents



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ID: 18318.0, MPI für Quantenoptik / Theory
Stochastic heating and acceleration of electrons in colliding laser fields in plasma
Authors:Sheng, Z. M.; Mima, K.; Sentoku, Y.; Jovanovic, M. S.; Taguchi, T.; Zhang, J.; Meyer-ter-Vehn, J.
Language:English
Date of Publication (YYYY-MM-DD):2002-02-01
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:88
Issue / Number:5
End Page:055004
Sequence Number of Article:055004
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We propose a mechanism that leads to efficient acceleration of electrons in plasma by two counterpropagating laser pulses. It is triggered by stochastic motion of electrons when the laser fields exceed some threshold amplitudes, as found in single- electron dynamics. It is further confirmed in particle-in-cell simulations. In vacuum or tenuous plasma, electron acceleration in the case with two colliding laser pulses can be much more efficient than with one laser pulse only. In plasma at moderate densities, such as a few percent of the critical density, the amplitude of the Raman-backscattered wave is high enough to serve as the second counterpropagating pulse to trigger the electron stochastic motion. As a result, even with one intense laser pulse only, electrons can be heated up to a temperature much higher than the corresponding laser ponderomotive potential.
External Publication Status:published
Document Type:Article
Communicated by:J. Ignacio Cirac
Affiliations:MPI für Quantenoptik/Theory/Laser Plasma Theory
External Affiliations:Osaka Univ, Inst Laser Engn, Yamada Oka 2-6, Suita, Osaka; 5650871, Japan; Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China; Setsunan Univ, Dept Elect Engn, Osaka, Japan;
Identifiers:ISI:000173687500032
ISSN:0031-9007
URL:http://link.aps.org/abstract/PRL/v88/e055004
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