Attosecond pulse generation in the relativistic regime of the laser-foil interaction: The sliding mirror model

Theory of the attosecond pulse generation during the interaction of a short relativistic-irradiance laser pulse with a thin overdense plasma slab is developed. The nonlinear electric current caused by the electron motion at relativistic velocity generates the high-order harmonics of the incident rad...

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Bibliographic Details
Published in:Physics of plasmas 2006-01, Vol.13 (1), p.013107-013107-12
Main Authors: Pirozhkov, Alexander S., Bulanov, Sergei V., Esirkepov, Timur Zh, Mori, Michiaki, Sagisaka, Akito, Daido, Hiroyuki
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED-PARTICLE TRANSPORT
ELECTRIC CURRENTS
ELECTRONS
FOILS
HARMONICS
LASERS
LIGHT TRANSMISSION
NONLINEAR PROBLEMS
PLASMA SIMULATION
PULSES
RADIANT FLUX DENSITY
RELATIVISTIC PLASMA
RELATIVISTIC RANGE
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Summary:Theory of the attosecond pulse generation during the interaction of a short relativistic-irradiance laser pulse with a thin overdense plasma slab is developed. The nonlinear electric current caused by the electron motion at relativistic velocity generates the high-order harmonics of the incident radiation. These harmonics are phase locked and can produce pulses with attosecond duration after spectral filtering. Conditions for the most efficient generation of single-attosecond pulses are discussed. A very efficient regime of attosecond pulse train generation without spectral filtering is proposed. The results are verified by the particle-in-cell simulations.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.2158145