Observation of Magnetized Soliton Remnants in the Wake of Intense Laser Pulse Propagation through Plasmas

Year: 2010

Authors: Romagnani L., Bigongiari A., Kar S., Bulanov S.V., Cecchetti C.A., Esirkepov T.Zh., Galimberti M.,Jung R., Liseykina T.V., Macchi A., Osterholz J., Pegoraro F., Willi O., Borghesi M.

Autors Affiliation: Queens Univ Belfast, Sch Math & Phys, Ctr Plasma Phys, Belfast BT7 1NN, Antrim, North Ireland; Ecole Polytech, CNRS, UPMC, CEA,LULI, F-91128 Palaiseau, France; JAEA, APRC, Kizugawa, Kyoto 6190215, Japan; Rutherford Appleton Lab, Cent Laser Facil, Chilton, England; Univ Dusseldorf, Inst Laser & Plasmaphys, Dusseldorf, Germany; Max Planck Inst Kernphys, D-69117 Heidelberg, Germany; CNR, Ist Nazl Ott, I-56100 Pisa, Italy; Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy.

Abstract: Slowly evolving, regularly spaced patterns have been observed in proton projection images of plasma channels drilled by intense (greater than or similar to 10(19) W cm(-2)) short (similar to 1 ps) laser pulses propagating in an ionized gas jet. The nature and geometry of the electromagnetic fields generating such patterns have been inferred by simulating the laser-plasma interaction and the following plasma evolution with a two-dimensional particle-in-cell code and the probe proton deflections by particle tracing. The analysis suggests the formation of rows of magnetized soliton remnants, with a quasistatic magnetic field associated with vortexlike electron currents resembling those of magnetic vortices.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 105 (17)      Pages from: 175002-1  to: 175002-4

More Information: We acknowledge the support of the RAL/CLF staff. This work has been supported by EPSRC Grants No. EP/E035728/1 (LIBRA consortium) and No. EP/C003586/1, by British-Council-MURST-CRUI, ESF-COST, TR18, and GRK1203 networks. Part of the simulations were p erformed at CINECA (Bologna, Italy) sponsored by CNR/INFM.
KeyWords: Evolution; Dynamics
DOI: 10.1103/PhysRevLett.105.175002

Citations: 39
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