Magnetic reconnection between colliding magnetized laser-produced plasma plumes

G. Fiksel, W. Fox, A. Bhattacharjee, D. H. Barnak, P. Y. Chang, K. Germaschewski, S. X. Hu, P. M. Nilson

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Observations of magnetic reconnection between colliding plumes of magnetized laser-produced plasma are presented. Two counterpropagating plasma flows are created by irradiating oppositely placed plastic (CH) targets with 1.8-kJ, 2-ns laser beams on the Omega EP Laser System. The interaction region between the plumes is prefilled with a low-density background plasma and magnetized by an externally applied magnetic field, imposed perpendicular to the plasma flow, and initialized with an X-type null point geometry with B=0 at the midplane and B=8T at the targets. The counterflowing plumes sweep up and compress the background plasma and the magnetic field into a pair of magnetized ribbons, which collide, stagnate, and reconnect at the midplane, allowing the first detailed observations of a stretched current sheet in laser-driven reconnection experiments. The dynamics of current sheet formation are in good agreement with first-principles particle-in-cell simulations that model the experiments.

Original languageEnglish
Article number105003
JournalPhysical review letters
Volume113
Issue number10
DOIs
Publication statusPublished - 2014 Sep 4

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laser plasmas
plumes
current sheets
magnetohydrodynamic flow
magnetic fields
ribbons
lasers
plastics
laser beams
methylidyne
geometry
cells
simulation
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Fiksel, G., Fox, W., Bhattacharjee, A., Barnak, D. H., Chang, P. Y., Germaschewski, K., ... Nilson, P. M. (2014). Magnetic reconnection between colliding magnetized laser-produced plasma plumes. Physical review letters, 113(10), [105003]. https://doi.org/10.1103/PhysRevLett.113.105003
Fiksel, G. ; Fox, W. ; Bhattacharjee, A. ; Barnak, D. H. ; Chang, P. Y. ; Germaschewski, K. ; Hu, S. X. ; Nilson, P. M. / Magnetic reconnection between colliding magnetized laser-produced plasma plumes. In: Physical review letters. 2014 ; Vol. 113, No. 10.
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Fiksel, G, Fox, W, Bhattacharjee, A, Barnak, DH, Chang, PY, Germaschewski, K, Hu, SX & Nilson, PM 2014, 'Magnetic reconnection between colliding magnetized laser-produced plasma plumes', Physical review letters, vol. 113, no. 10, 105003. https://doi.org/10.1103/PhysRevLett.113.105003

Magnetic reconnection between colliding magnetized laser-produced plasma plumes. / Fiksel, G.; Fox, W.; Bhattacharjee, A.; Barnak, D. H.; Chang, P. Y.; Germaschewski, K.; Hu, S. X.; Nilson, P. M.

In: Physical review letters, Vol. 113, No. 10, 105003, 04.09.2014.

Research output: Contribution to journalArticle

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