Observation of plasma density dependence of electromagnetic soliton excitation by an intense laser pulse

Anno: 2011

Autori: Sarri G., Kar S., Romagnani L., Bulanov SV., Cecchetti CA., Galimberti M., Gizzi LA., Heathcote R., Jung R., Kourakis I., Osterholz J., Schiavi A., Willi O., Borghesi M.

Affiliazione autori: Centre for Plasma Physics, The Queen’s University of Belfast, Belfast BT7 1NN, United Kingdom; LULI, Ecole Polytechnique, CNRS, route de Saclay, Palaiseau 91128, France; Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan; IPCF, Consiglio Nazionale delle Ricerche, CNR campus, Pisa, Italy; Rutherford Appleton Laboratory, Central Laser Facility, Chilton OX11 0QX, United Kingdom; Institute for Laser and Plasma Physics, Heinrich Heine University, Dusseldorf, Germany; Dipartimento di Energetica, Universita ́ di Roma 1 ‘La Sapienza’, Roma, Italy

Abstract: The experimental evidence of the correlation between the initial electron density of the plasma and electromagnetic soliton excitation at the wake of an intense (10(19) W/cm(2)) and short (1 ps) laser pulse is presented. The spatial distribution of the solitons, together with their late time evolution into post-solitons, is found to be dependent upon the background plasma parameters, in agreement with published analytical and numerical findings. The measured temporal evolution and electrostatic field distribution of the structures are consistent with their late time evolution and the occurrence of multiple merging of neighboring post-solitons. (C) 2011 American Institute of Physics. [doi:10.1063/1.3625261]

Giornale/Rivista: PHYSICS OF PLASMAS

Volume: 18 (8)      Da Pagina: 080704  A: 080704

Maggiori informazioni: We acknowledge the support of the RAL/CLF staff. This work has been supported by the Engineering and Physical Sciences Research Council [Grant Numbers EP/E035728/1 (LIBRA consortium) and EP/D06337X/1], by British Council-MURST-CRUI, and by DFG TR 18 and GK 1203.
DOI: 10.1063/1.3625261

Citazioni: 21
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