Generation of relativistic electron mirrors and frequency upconversion in laser-plasma interactionsстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:It is shown analytically and by computer simulation that relativistic electron mirrors (bunches with
extremely short length) can be generated by an ultra-intense nonadiabatic laser pulse (pulse with a
sharp rising edge) incident normally upon a thin rarefied plasma layer provided the cross dimensions
of laser beam are large enough. Due to Coulomb forces, the electron mirror is a transient structure
that exists as a single whole only during a limited time at the beginning of the laser–plasma
interaction. Frequency upconversion of the probe laser pulse into the single, ultrashort, and coherent
hard x-ray pulse due to backscattering off such a relativistic electron mirror is also considered and
the spectrum of upshifted radiation is investigated.