Piecewise acceleration of electrons across a periodic solid-state structure irradiated by intense laser pulse

Piecewise acceleration of electrons across a periodic solid-state structure irradiated by intense laser pulse

Three-dimensional particle-in-cell simulations show that the periodic solid-state structures irradiated by intense ( ∼1019W−1cm2) laser pulses can generate collimated electron bunches with energies up to 30 MeV (and acceleration gradient of 11.5 GeV cm−2), if the microstructure period is equal to th...

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Veröffentlicht in:Plasma physics and controlled fusion 2020-10, Vol.62 (10), p.104002
Hauptverfasser: Serebryakov, D A, Kostyukov, I Yu
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Sprache:eng
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electron acceleration
laser-matter interaction
microstructured targets
particle-in-cell simulations
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creator Serebryakov, D A
Kostyukov, I Yu
description Three-dimensional particle-in-cell simulations show that the periodic solid-state structures irradiated by intense ( ∼1019W−1cm2) laser pulses can generate collimated electron bunches with energies up to 30 MeV (and acceleration gradient of 11.5 GeV cm−2), if the microstructure period is equal to the laser wavelength. A one-dimensional model of piecewise acceleration in the microstructure is proposed and it is in a good agreement with the results of numerical simulations. It shows that the acceleration process for relativistic electrons can be theoretically infinite. In the simulations, the optimal target parameters (the width of the microstructure elements and the microstructure period) are determined. The explored parameters can be used for proof-of-principle experiments demonstrating an ultrahigh gradient acceleration by a number of identical and mutually coherent laser pulses (A Pukhov et al, Eur. Phys. J. Spec. Top. 223, 1197 (2014)).
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subjects electron acceleration
laser-matter interaction
microstructured targets
particle-in-cell simulations
title Piecewise acceleration of electrons across a periodic solid-state structure irradiated by intense laser pulse
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