Kilotesla plasmoid formation by a trapped relativistic laser beam

M. Ehret, Yu. Kochetkov, Y. Abe, K. F. F. Law, N. Bukharskii, V. Stepanischev, S. Fujioka, E. d'Humières, B. Zielbauer, V. Bagnoud, G. Schaumann, T. Somekawa, M. Roth, V. Tikhonchuk, J. J. Santos, and Ph. Korneev
Phys. Rev. E 106, 045211 – Published 31 October 2022
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  • INTRODUCTION
  • EXPERIMENT
  • DISCUSSION
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
    • References

    Abstract

    A strong quasistationary magnetic field is generated in hollow targets with curved internal surface under the action of a relativistically intense picosecond laser pulse. Experimental data evidence the formation of quasistationary strongly magnetized plasma structures decaying on a hundred picoseconds timescale, with the magnetic field strength of the kilotesla scale. Numerical simulations unravel the importance of transient processes during the magnetic field generation and suggest the existence of fast and slow regimes of plasmoid evolution depending on the interaction parameters. The proposed setup is suited for perspective highly magnetized plasma application and fundamental studies.

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    • Received 17 September 2019
    • Revised 13 April 2021
    • Accepted 4 October 2022

    DOI:https://doi.org/10.1103/PhysRevE.106.045211

    ©2022 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    High-energy-density plasmasLaboratory studies of space & astrophysical plasmasLaser-induced magnetic fields in plasmasLight-induced magnetic effectsMagnetic field generation & plasma dynamoMagnetohydrodynamicsNonlinear phenomena in plasmas
    1. Physical Systems
    Hot dense plasmaMagnetic systemsMagnetized plasmaRelativistic plasmas
    1. Techniques
    Electric & magnetic plasma measurementsMagnetic techniques
    Plasma PhysicsGeneral PhysicsInterdisciplinary Physics

    Authors & Affiliations

    M. Ehret1,2,*, Yu. Kochetkov3, Y. Abe4,5, K. F. F. Law5, N. Bukharskii3, V. Stepanischev3, S. Fujioka5, E. d'Humières1, B. Zielbauer6, V. Bagnoud6, G. Schaumann2, T. Somekawa7,5, M. Roth2, V. Tikhonchuk1,8, J. J. Santos1,†, and Ph. Korneev3,9,‡

    • 1Université de Bordeaux, CNRS, CEA, Centre Lasers Intenses et Applications (CELIA), UMR 5107, Talence, France
    • 2Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, Germany
    • 3National Research Nuclear University MEPhI, Moscow, Russian Federation
    • 4Graduate School of Engineering, Osaka University, Japan
    • 5Institute of Laser Engineering, Osaka University, Japan
    • 6Plasma Physik/PHELIX, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
    • 7Institute for Laser Technology, 1-8-4 Utsubohonmachi, Osaka 550-0004, Japan
    • 8ELI-Beamlines, Institute of Physics Academy of Sciences of the Czech Republic, Dolní Břežany, Czech Republic
    • 9P. N. Lebedev Physical Institute of RAS, Moscow, Russian Federation

    • *mehret@clpu.es
    • †joao.santos@u-bordeaux.fr
    • ‡ph.korneev@gmail.com

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    Issue

    Vol. 106, Iss. 4 — October 2022

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