Dynamics of Self-Generated, Large Amplitude Magnetic Fields Following High-Intensity Laser Matter Interaction

G. Sarri, A. Macchi, C. A. Cecchetti, S. Kar, T. V. Liseykina, X. H. Yang, M. E. Dieckmann, J. Fuchs, M. Galimberti, L. A. Gizzi, R. Jung, I. Kourakis, J. Osterholz, F. Pegoraro, A. P. L. Robinson, L. Romagnani, O. Willi, and M. Borghesi
Phys. Rev. Lett. 109, 205002 – Published 13 November 2012

Abstract

The dynamics of magnetic fields with an amplitude of several tens of megagauss, generated at both sides of a solid target irradiated with a high-intensity (1019W/cm2) picosecond laser pulse, has been spatially and temporally resolved using a proton imaging technique. The amplitude of the magnetic fields is sufficiently large to have a constraining effect on the radial expansion of the plasma sheath at the target surfaces. These results, supported by numerical simulations and simple analytical modeling, may have implications for ion acceleration driven by the plasma sheath at the rear side of the target as well as for the laboratory study of self-collimated high-energy plasma jets.

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  • Received 9 February 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.205002

© 2012 American Physical Society

Authors & Affiliations

G. Sarri1, A. Macchi2,3, C. A. Cecchetti4, S. Kar1, T. V. Liseykina5, X. H. Yang1, M. E. Dieckmann1, J. Fuchs6, M. Galimberti7, L. A. Gizzi2, R. Jung8, I. Kourakis1, J. Osterholz8, F. Pegoraro2,3, A. P. L. Robinson7, L. Romagnani6, O. Willi8, and M. Borghesi1

  • 1School of Mathematics and Physics, The Queen’s University of Belfast, Belfast, BT7 1NN, United Kingdom
  • 2Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, research unit “Adriano Gozzini”, 56124 Pisa, Italy
  • 3Dipartimento di Fisica “E. Fermi”, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
  • 4Light4Tech s.r.l, 50018 Scandicci, Italy
  • 5Institut für Physik, Universität Rostock, D-18051 Rostock, Germany
  • 6LULI, Ecole Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau, France
  • 7Rutherford Appleton Laboratory, Central Laser Facility, Chilton, OX11 0QX, United Kingdom
  • 8Institute for Laser and Plasma Physics, Heinrich Heine University, Dusseldorf, Germany

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Issue

Vol. 109, Iss. 20 — 16 November 2012

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