Scientific Results

Nonlocal effects in the self-consistent nonlinear 3D propagation of an ultrastrong, femtosecond laser pulse in plasmas

Year: 2012

Authors: Jovanovic D., Fedele R., Tanjia F., De Nicola S., Gizzi LA.

Autors Affiliation: Institute of Physics, University of Belgrade, P.O. Box 57, 11001 Belgrade, Serbia;
Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” and INFN Sezione di Napoli, Complesso Universitario di M.S. Angelo, via Cintia, 80126 Napoli, Italy;
Scuola di Dottorato in Scienze Fisiche, Università di Napoli “Federico II” and INFN Sezione di Napoli, Complesso Universitario di M.S. Angelo, via Cintia, 80126 Napoli, Italy;
Istituto Nazionale di Ottica – CNR, Pozzuoli, Italy and INFN Sezione di Napoli, Complesso Universitario di M.S. Angelo, via Cintia, 80126 Napoli, Italy;
ILIL, Istituto Nazionale di Ottica – CNR, Pisa, Italy and INFN Sezione di Pisa, Pisa, Italy

Abstract: A theoretical investigation of the interaction of an ultra-strong and ultra-short laser pulse with unmagnetized plasma is carried out and applied to the specifications of the Ti:Sa Frascati Laser for Acceleration and Multidisciplinary Experiments (FLAME). The analysis is based on the Lorentz-Maxwell fluid model in the fully relativistic regime taking the pancake approximation. The mathematical model yields Zakharov-like equations, which gives a satisfactory description of a wide range of laser-plasma acceleration configurations. It is shown that the pancake structure is unstable in two dimensions (2D) but the collapse occurs over a distance much longer than the typical active plasma length.

Journal/Review: EUROPEAN PHYSICAL JOURNAL D

Volume: 66 (12)      Pages from: 328  to: 328

More Information: This work was supported in part by the grant #171006 of the Serbian Ministry of Science and Education. One of the authors (DJ) acknowledges financial support from the fondo FAI of the Italian INFN and the kind hospitality of Dipartimento di Scienze Fisiche, Universita di Napoli \”Federico II\”. The authors also wish to thank Prof. Danilo Giulietti and Dr. Paolo Tomassini for enlightening discussions.
DOI: 10.1140/epjd/e2012-30327-6

Citations: 11
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