https://doi.org/10.1140/epjs/s11734-022-00751-y
Regular Article
Electron heating and radiation in high aspect ratio sub-micron plasma generated by an ultrafast Bessel pulse within a solid dielectric
1
FEMTO-ST Institute, Univ. Franche-Comté, CNRS, 15B avenue des Montboucons, 25030, Besançon, France
2
Sorbonne University, Pierre and Marie Curie Campus, 4 place Jussieu, 75252, Paris Cedex 5, France
e
francois.courvoisier@femto-st.fr
Received:
23
June
2022
Accepted:
3
December
2022
Published online:
22
December
2022
When propagating inside dielectrics, an ultrafast Bessel beam creates a high aspect ratio cylinder of plasma with nanometric diameter that extends over several tens of micrometers to centimeters. We analyze the interaction between the intense ultrafast laser pulse and the plasma rod using particle-in-cell simulations. We show that electrons are heated and accelerated up to keV energies via transit acceleration inside the resonance lobes in the vicinity of the critical surface and compute their radiation pattern.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
