Laser field absorption in self-generated electron-positron pair plasma |
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Authors: | Nerush E N Kostyukov I Yu Fedotov A M Narozhny N B Elkina N V Ruhl H |
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Institution: | Institute of Applied Physics, Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia. |
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Abstract: | Recently, much attention has been attracted to the problem of limitations on the attainable intensity of high power lasers A.?M. Fedotov et al., Phys. Rev. Lett. 105, 080402 (2010)]. The laser energy can be absorbed by electron-positron pair plasma produced from a seed by a strong laser field via the development of the electromagnetic cascades. The numerical model for a self-consistent study of electron-positron pair plasma dynamics is developed. Strong absorption of the laser energy in self-generated overdense electron-positron pair plasma is demonstrated. It is shown that the absorption becomes important for a not extremely high laser intensity I ~ 10(24) W/cm(2) achievable in the near future. |
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