Formation of relativistic electron mirrors in laser-plasma interactionsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The generation of relativistic electron mirrors (bunches with extremely short lengths) in laserplasma
interactions is considered. It is shown that such a mirror can be generated by using an
ultra-intense nonadiabatic laser pulse (pulse with a sharp rising edge) incident normally upon a
thin plasma layer. Due to the relativistic contraction, the resulting length of the electron mirror
can be considerably smaller than the initial thickness of the plasma layer. The lifetime of the
relativistic mirror depends on the dimensionless amplitude and shape of the laser pulse, the initial
density of electrons, and the thickness of the plasma layer. As a result, relativistic electron mirrors
can survive during the rst several half-periods of an external electromagnetic eld, which can
correspond to time intervals of hundreds of femtoseconds in the laboratory frame.