Filamentation instability of counterstreaming laser-driven plasmas

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

Research output: Contribution to journalArticle

107 Citations (Scopus)

Abstract

Filamentation due to the growth of a Weibel-type instability was observed in the interaction of a pair of counterstreaming, ablatively driven plasma flows, in a supersonic, collisionless regime relevant to astrophysical collisionless shocks. The flows were created by irradiating a pair of opposing plastic (CH) foils with 1.8 kJ, 2-ns laser pulses on the OMEGA EP Laser System. Ultrafast laser-driven proton radiography was used to image the Weibel-generated electromagnetic fields. The experimental observations are in good agreement with the analytical theory of the Weibel instability and with particle-in-cell simulations.

Original languageEnglish
Article number225002
JournalPhysical review letters
Volume111
Issue number22
DOIs
Publication statusPublished - 2013 Nov 27

Fingerprint

Weibel instability
lasers
radiography
magnetohydrodynamic flow
foils
astrophysics
electromagnetic fields
plastics
shock
methylidyne
protons
pulses
cells
simulation
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Fox, W., Fiksel, G., Bhattacharjee, A., Chang, P. Y., Germaschewski, K., Hu, S. X., & Nilson, P. M. (2013). Filamentation instability of counterstreaming laser-driven plasmas. Physical review letters, 111(22), [225002]. https://doi.org/10.1103/PhysRevLett.111.225002
Fox, W. ; Fiksel, G. ; Bhattacharjee, A. ; Chang, P. Y. ; Germaschewski, K. ; Hu, S. X. ; Nilson, P. M. / Filamentation instability of counterstreaming laser-driven plasmas. In: Physical review letters. 2013 ; Vol. 111, No. 22.
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Fox, W, Fiksel, G, Bhattacharjee, A, Chang, PY, Germaschewski, K, Hu, SX & Nilson, PM 2013, 'Filamentation instability of counterstreaming laser-driven plasmas', Physical review letters, vol. 111, no. 22, 225002. https://doi.org/10.1103/PhysRevLett.111.225002

Filamentation instability of counterstreaming laser-driven plasmas. / Fox, W.; Fiksel, G.; Bhattacharjee, A.; Chang, P. Y.; Germaschewski, K.; Hu, S. X.; Nilson, P. M.

In: Physical review letters, Vol. 111, No. 22, 225002, 27.11.2013.

Research output: Contribution to journalArticle

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AU - Fox, W.

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AU - Bhattacharjee, A.

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AU - Hu, S. X.

AU - Nilson, P. M.

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AB - Filamentation due to the growth of a Weibel-type instability was observed in the interaction of a pair of counterstreaming, ablatively driven plasma flows, in a supersonic, collisionless regime relevant to astrophysical collisionless shocks. The flows were created by irradiating a pair of opposing plastic (CH) foils with 1.8 kJ, 2-ns laser pulses on the OMEGA EP Laser System. Ultrafast laser-driven proton radiography was used to image the Weibel-generated electromagnetic fields. The experimental observations are in good agreement with the analytical theory of the Weibel instability and with particle-in-cell simulations.

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Fox W, Fiksel G, Bhattacharjee A, Chang PY, Germaschewski K, Hu SX et al. Filamentation instability of counterstreaming laser-driven plasmas. Physical review letters. 2013 Nov 27;111(22). 225002. https://doi.org/10.1103/PhysRevLett.111.225002