Abstract
The formation of short electron bunches during the passage of a laser pulse of relativistic intensity through a sharp boundary of semi-bounded plasma has been analytically studied. It is shown in one-dimensional geometry that one physical mechanism that is responsible for the generation of electron bunches is their self-injection into the wake field of a laser pulse, which occurs due to the mixing of electrons during the action of the laser pulse on plasma. Simple analytic relationships are obtained that can be used for estimating the length and charge of an electron bunch and the spread of electron energies in the bunch. The results of the analytical investigation are confirmed by data from numerical simulations.
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Original Russian Text © S.V. Kuznetsov, 2016, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 150, No. 2, pp. 195–213.
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Kuznetsov, S.V. Generation of short electron bunches by a laser pulse crossing a sharp boundary of inhomogeneous plasma. J. Exp. Theor. Phys. 123, 169–183 (2016). https://doi.org/10.1134/S1063776116070190
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DOI: https://doi.org/10.1134/S1063776116070190