title: Laser field absorption in self-generated electron-positron pair plasma.
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.
authors.affiliation: Institute of Applied Physics, Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia.
authors.forename: E N
authors.initials: EN
authors.lastname: Nerush
authors.forename: I Yu
authors.initials: IY
authors.lastname: Kostyukov
authors.forename: A M
authors.initials: AM
authors.lastname: Fedotov
authors.forename: N B
authors.initials: NB
authors.lastname: Narozhny
authors.forename: N V
authors.initials: NV
authors.lastname: Elkina
authors.forename: H
authors.initials: H
authors.lastname: Ruhl
mesh_terms: D000042:Absorption; D004583:Electrons; D007834:Lasers; D009010:Monte Carlo Method