[Sur l'accélération d'ions par des ondes électromagnétiques de haute intensité dans le régime dominé par la pression de radiation]
Quand la pression de radiation laser est dominante, l'efficacité de la transformation de l'énergie laser en énergie des ions relativistes est élevée. Une analyse de la stabilité d'une mince tranche de plasma accélérée par la pression de rayonnement montre que le déclenchement d'une instabilité du type Rayleigh–Taylor peut mener à un fractionnement transverse de la tranche. Dans la phase nonlinéaire de développement de l'instabilité la tranche se divise en morceaux séparés, qui sont accélérés par la pression de rayonnement de l'onde. Une indication de l'effet de la pression de rayonnement sur les ions de la cible est obtenue dans des études expérimentales de jets de plasma éjectés de la face arrière de cibles minces solides irradiées par des impulsions ultra-intenses.
When the laser pulse radiation pressure is dominant, the efficiency of the laser energy transformation into the energy of relativistic ions is very high. An analysis of the stability of a thin plasma slab accelerated by the radiation pressure shows that the onset of a Rayleigh–Taylor-like instability can lead to transverse bunching of the slab. At the nonlinear stage of the instability development the plasma slab breaks up into separated clumps, which are accelerated by the wave radiation pressure. An indication of the effect of radiation pressure on the bulk target ions is obtained in the experimental studies of plasma jets ejected from the rear side of thin solid targets irradiated by ultraintense laser pulses.
Mots-clés : Plasmas laser relativistes, Accélération de particules chargées, Accélération dominée par la pression de rayonnement
Sergei V. Bulanov 1, 2 ; Timur Zh. Esirkepov 1 ; Francesco Pegoraro 3 ; Marco Borghesi 4
@article{CRPHYS_2009__10_2-3_216_0,
author = {Sergei V. Bulanov and Timur Zh. Esirkepov and Francesco Pegoraro and Marco Borghesi},
title = {On the ion acceleration by high power electromagnetic waves in the radiation pressure dominated regime},
journal = {Comptes Rendus. Physique},
pages = {216--226},
publisher = {Elsevier},
volume = {10},
number = {2-3},
year = {2009},
doi = {10.1016/j.crhy.2009.03.001},
language = {en},
}
TY - JOUR AU - Sergei V. Bulanov AU - Timur Zh. Esirkepov AU - Francesco Pegoraro AU - Marco Borghesi TI - On the ion acceleration by high power electromagnetic waves in the radiation pressure dominated regime JO - Comptes Rendus. Physique PY - 2009 SP - 216 EP - 226 VL - 10 IS - 2-3 PB - Elsevier DO - 10.1016/j.crhy.2009.03.001 LA - en ID - CRPHYS_2009__10_2-3_216_0 ER -
%0 Journal Article %A Sergei V. Bulanov %A Timur Zh. Esirkepov %A Francesco Pegoraro %A Marco Borghesi %T On the ion acceleration by high power electromagnetic waves in the radiation pressure dominated regime %J Comptes Rendus. Physique %D 2009 %P 216-226 %V 10 %N 2-3 %I Elsevier %R 10.1016/j.crhy.2009.03.001 %G en %F CRPHYS_2009__10_2-3_216_0
Sergei V. Bulanov; Timur Zh. Esirkepov; Francesco Pegoraro; Marco Borghesi. On the ion acceleration by high power electromagnetic waves in the radiation pressure dominated regime. Comptes Rendus. Physique, Laser acceleration of particles in plasma, Volume 10 (2009) no. 2-3, pp. 216-226. doi : 10.1016/j.crhy.2009.03.001. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2009.03.001/
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