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Title: Convective amplification of wake field due to self-modulation of a laser pulse induced by field ionization

Abstract

By using a particle-in-cell simulation code which includes tunneling ionization, it is found that strong wake fields are excited and amplified due to the modulation of an intense laser pulse induced by an ionizing plasma in the regime where the matching condition between laser pulse length (L{sub Laser}) and plasma wavelength ({lambda}{sub p}), i.e. L{sub Laser}{le}{lambda}{sub p} is not satisfied. The modulation is characterized by a gradual steepening of the pulse front where there is a copropagating density gradient which is due to the rapid plasma formation from ionization there. Accordingly, the wake field is convectively amplified to a significant level. This amplification of plasma waves always occurs, more or less, for laser propagation in ionizing plasmas. {copyright} {ital 1998 American Institute of Physics.}

Authors:
 [1];  [2];  [3]
  1. Kansai Research Establishment, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-11 (Japan)
  2. Naka Fusion Research Establishment and Kansai Research Establishment, Japan Atomic Energy Research Institute, Naka, Ibaraki, 311-01 (Japan)
  3. Advanced Basic Research Science Center and Kansai Research Establishment, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-11 (Japan)
Publication Date:
OSTI Identifier:
565809
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 5; Journal Issue: 1; Other Information: PBD: Jan 1998
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; PLASMA WAVES; PLASMA SIMULATION; PLASMA DENSITY; AMPLIFICATION; MODULATION; IONIZATION; LIGHT TRANSMISSION

Citation Formats

Kato, S, Kishimoto, Y, and Koga, J. Convective amplification of wake field due to self-modulation of a laser pulse induced by field ionization. United States: N. p., 1998. Web. doi:10.1063/1.872701.
Kato, S, Kishimoto, Y, & Koga, J. Convective amplification of wake field due to self-modulation of a laser pulse induced by field ionization. United States. https://doi.org/10.1063/1.872701
Kato, S, Kishimoto, Y, and Koga, J. Thu . "Convective amplification of wake field due to self-modulation of a laser pulse induced by field ionization". United States. https://doi.org/10.1063/1.872701.
@article{osti_565809,
title = {Convective amplification of wake field due to self-modulation of a laser pulse induced by field ionization},
author = {Kato, S and Kishimoto, Y and Koga, J},
abstractNote = {By using a particle-in-cell simulation code which includes tunneling ionization, it is found that strong wake fields are excited and amplified due to the modulation of an intense laser pulse induced by an ionizing plasma in the regime where the matching condition between laser pulse length (L{sub Laser}) and plasma wavelength ({lambda}{sub p}), i.e. L{sub Laser}{le}{lambda}{sub p} is not satisfied. The modulation is characterized by a gradual steepening of the pulse front where there is a copropagating density gradient which is due to the rapid plasma formation from ionization there. Accordingly, the wake field is convectively amplified to a significant level. This amplification of plasma waves always occurs, more or less, for laser propagation in ionizing plasmas. {copyright} {ital 1998 American Institute of Physics.}},
doi = {10.1063/1.872701},
url = {https://www.osti.gov/biblio/565809}, journal = {Physics of Plasmas},
number = 1,
volume = 5,
place = {United States},
year = {1998},
month = {1}
}