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Quasimonoenergetic multi-GeV electron acceleration in a plasma waveguide

Ronan Lahaye1, Kosta Oubrerie2, Olena Kononenko1, Julien Gautier1, Igor A. Andriyash1, and Cedric Thaury1,*

  • *Contact author: cedric.thaury@ensta-paris.fr
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Phys. Rev. Accel. Beams 28, 091301 – Published 11 September, 2025

DOI: https://doi.org/10.1103/39x8-jgvw

Abstract

Laser-plasma accelerators present a promising alternative to conventional accelerators. To fully exploit the extreme amplitudes of the plasma fields and produce high-quality beams, precise control over electron injection into the accelerating structure is required, along with effective laser pulse guiding to extend the acceleration length. Recent studies have demonstrated efficient guiding and acceleration using hydrodynamic optically field-ionized plasma channels. This guiding technique has also been combined with controlled electron injection to produce high-quality electron beams at the GeV level using a 50 TW laser. The present work extends these results to higher laser power, demonstrating the generation of quasimonoenergetic electron beams with peak energies exceeding 2 GeV, for a PW-class laser.

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Phys. Rev. Accel. Beams 28, 091301– Published 11 September, 2025
  • Received 1 April 2025
  • Accepted 6 August 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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