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

Anno: 2012

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

Affiliazione autori: Univ Belgrade, Inst Phys, Belgrade 11001, Serbia; Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy; INFN Sez Napoli, Complesso Univ MS Angelo, I-80126 Naples, Italy; Univ Naples Federico II, Scuola Dottorato Sci Fis, I-80126 Naples, Italy; Ist Nazl Ott CNR, Pozzuoli, Italy; Ist Nazl Ott CNR, ILIL, Pisa, Italy; INFN Sez 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.

Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D

Volume: 66 (12)      Da Pagina: 328-1  A: 328-16

Maggiori informazioni: 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.
Parole chiavi: Thermal-wave Model; Wakefield Acceleration; Magnetic-fields; Solitary Waves; Electron-beams; Solitons; Generation; Injection; Instabilities; Excitation
DOI: 10.1140/epjd/e2012-30327-6

Citazioni: 12
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