Scientific Results

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: Centre for Plasma Physics, School of Mathematics and Physics, The Queen’s University of Belfast, Belfast BT7 1NN, United Kingdom; LULI, École Polytechnique, CNRS, CEA, UPMC, route de Saclay, 91128 Palaiseau, France; APRC, JAEA, Kizugawa, Kyoto 619-0215, Japan; Central Laser Facility, Rutherford Appleton Laboratory, Chilton, United Kingdom; Institut für Laser-und Plasmaphysik, Heinrich-Heine-Universität, Düsseldorf, Germany; Max-Planck-Institut für Kernphysik, Heidelberg, Germany; Istituto Nazionale di Ottica, CNR, Pisa, Italy; Dipartimento di Fisica \”E. Fermi\”, Università di Pisa, 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  to: 175002

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 performed at CINECA (Bologna, Italy) sponsored by CNR/INFM.
DOI: 10.1103/PhysRevLett.105.175002

Citations: 27
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