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Title: Growth of concomitant laser-driven collisionless and resistive electron filamentation instabilities over large spatiotemporal scales

Journal Article · · Nature Physics
ORCiD logo [1]; ORCiD logo [2];  [3];  [4];  [5];  [6];  [7];  [8]; ORCiD logo [9];  [2];  [10];  [11];  [12];  [11];  [5];  [13]; ORCiD logo [2];  [2]; ORCiD logo [14]; ORCiD logo [15]
  1. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; SLAC National Accelerator Lab., Menlo Park, CA (United States); CEA, DAM, DIF, Arpajon (France)
  2. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC
  3. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; INRS-EMT, Varennes, QC (Canada)
  4. ELI-NP, Horia Hulubei National Inst. of Physics and Nuclear Engineering, Bucharest-Magurele (Romania)
  5. INRS-EMT, Varennes, QC (Canada)
  6. Heinrich-Heine Univ., Dusseldorf (Germany). Inst. fur Laser-und Plasmaphysik
  7. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; CEA, DAM, DIF, Arpajon (France)
  8. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; Univ. di Roma La Sapienza, Rome (Italy)
  9. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; European XFEL, Schenefeld (Germany)
  10. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  11. Heinrich Heine Univ., Dusseldorf (Germany). Inst. fur Laser- und Plasmaphysik
  12. Queen's Univ., Belfast, Northern Ireland (United Kingdom)
  13. Inst. of Applied Physics, Nizhny Novgorod (Russia)
  14. CEA, DAM, DIC, Arpajon (France)
  15. Sorbonne Univ., Ecole Polytechnique, Palaiseau (France). LULI-CNRS, CEA, UPMC; Inst. of Applied Physics, Nizhny Novgorod (Russia)

Collective processes in plasmas often induce microinstabilities that play an important role in many space or laboratory plasma environments. Particularly of note is the Weibel-type current filamentation instability, which is believed to drive the creation of collisionless shocks in weakly magnetized astrophysical plasmas. In this paper, this instability class is studied through interactions of ultraintense and short laser pulses with solid foils, leading to localized generation of megaelectronvolt electrons. Proton radiographic measurements of both low- and high-resistivity targets show two distinct, superimposed electromagnetic field patterns arising from the interpenetration of the megaelectronvolt electrons and the background plasma. Particle-in-cell simulations and theoretical estimates suggest that the collisionless Weibel instability building up in the dilute expanding plasmas formed at the target surfaces causes the observed azimuthally symmetric electromagnetic filaments. For a sufficiently high resistivity of the target foil, an additional resistive instability is triggered in the bulk target, giving rise to radially elongated filaments. The data reveal the growth of both filamentation instabilities over large temporal (tens of picoseconds) and spatial (hundreds of micrometres) scales.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
PRACE; European Research Council (ERC); Agence Nationale de la Recherche; Engineering and Physical Sciences Research Council (EPSRC); Ministry of Education and Science of the Russian Federation; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-76SF00515; 2014112576; 654148; 787539; 11-IDEX-0004-02; ANR-17-CE30-0026-Pinnacle; EP/K022415/1; EP/J002550/1; 14.Z50.31.0007; AC52-07NA27344
OSTI ID:
1638046
Alternate ID(s):
OSTI ID: 1886152
Report Number(s):
LLNL-JRNL-823641; TRN: US2201704
Journal Information:
Nature Physics, Vol. 16; ISSN 1745-2473
Publisher:
Nature Publishing Group (NPG)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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