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Plasma channeling by multiple short-pulse lasers

  • W. Yu (a1) (a2), L. Cao (a3), M.Y. Yu (a2) (a4), H. Cai (a3) (a5), H. Xu (a1), X. Yang (a1), A. Lei (a1), K.A. Tanaka (a5) and R. Kodama (a5)...


Channeling by a train of laser pulses into homogeneous and inhomogeneous plasmas is studied using particle-in-cell simulation. When the pulse duration and the interval between the successive pulses are appropriate, the laser pulse train can channel into the plasma deeper than a single long-pulse laser of similar peak intensity and total energy. The increased penetration distance can be attributed to the repeated actions of the ponderomotive force, the continuous between-pulse channel lengthening by the inertially evacuating ions, and the suppression of laser-driven plasma instabilities by the intermittent laser-energy cut-offs.


Corresponding author

Address correspondence and reprint request to: Anle Lei, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. E-mail:


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Plasma channeling by multiple short-pulse lasers

  • W. Yu (a1) (a2), L. Cao (a3), M.Y. Yu (a2) (a4), H. Cai (a3) (a5), H. Xu (a1), X. Yang (a1), A. Lei (a1), K.A. Tanaka (a5) and R. Kodama (a5)...


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