Flying mirror model for interaction of a super-intense laser pulse with a thin plasma layer: Transparency and shaping of linearly-polarized laser pulsesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:A self-consistent one-dimensional 1D flying mirror model is developed for description of an
interaction of an ultra-intense laser pulse with a thin plasma layer foil. In this model, electrons of
the foil can have large longitudinal displacements and relativistic longitudinal momenta. An
approximate analytical solution for a transmitted field is derived. Transmittance of the foil shows not
only a nonlinear dependence on the amplitude of the incident laser pulse, but also time dependence
and shape dependence in the high-transparency regime. The results are compared with
particle-in-cell PIC simulations and a good agreement is ascertained. Shaping of incident laser
pulses using the flying mirror model is also considered. It can be used either for removing a prepulse
or for reducing the length of a short laser pulse. The parameters of the system for effective shaping
are specified. Predictions of the flying mirror model for shaping are compared with the 1D PIC
simulations, showing good agreement.