TY - JOUR
T1 - Filamentation instability of counterstreaming laser-driven plasmas
AU - Fox, W.
AU - Fiksel, G.
AU - Bhattacharjee, A.
AU - Chang, P. Y.
AU - Germaschewski, K.
AU - Hu, S. X.
AU - Nilson, P. M.
PY - 2013/11/27
Y1 - 2013/11/27
N2 - 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.
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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U2 - 10.1103/PhysRevLett.111.225002
DO - 10.1103/PhysRevLett.111.225002
M3 - Article
AN - SCOPUS:84888634191
SN - 0031-9007
VL - 111
JO - Physical review letters
JF - Physical review letters
IS - 22
M1 - 225002
ER -