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Proceedings Paper

Simulation studies of radiation pressure-driven light sail and shock acceleration
Author(s): Andrea Sgattoni; Matteo Tamburini; Tatiana V. Liseykina; Amritpal Singh Nindrayog; Francesco Pegoraro; Andrea Macchi
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Paper Abstract

Simulation results are reported for two ion acceleration mechanisms driven by radiation pressure. Three-dimensional (3D) simulations of the acceleration of thin foils by circularly polarized pulses (“light sail” regime) at ultra-relativistic intensities (a0 > 100) show an ion energy that is higher than observed in 1D and 2D simulations, presumably due to density rarefaction and self-wrapping of the laser pulse as the foil is deformed. Simulations of the interaction of linearly polarized pulses with long-scalelength, moderately overdense plasmas at mildly relativistic intensities (a0 = 1÷10) show radiation-pressure driven formation of both solitary and shock waves leading to ion acceleration in the target bulk. In 1D simulations, the spectrum of the accelerated ions is monoenergetic within some range of the initial ion temperature. In 2D simulations, the onset of rippling at the shock surface apparently leads to broadening of the energy spectrum.

Paper Details

Date Published: 7 May 2013
PDF: 6 pages
Proc. SPIE 8779, Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III, 87790H (7 May 2013); doi: 10.1117/12.2017379
Show Author Affiliations
Andrea Sgattoni, Politecnico di Milano (Italy)
Istituto Nazionale di Ottica, CNR (Italy)
Matteo Tamburini, Univ. di Pisa (Italy)
Max-Planck-Institut für Kernphysik (Germany)
Tatiana V. Liseykina, Univ. Rostock (Germany)
Amritpal Singh Nindrayog, Istituto Nazionale di Ottica, CNR (Italy)
Univ. di Pisa (Italy)
Francesco Pegoraro, Istituto Nazionale di Ottica, CNR (Italy)
Univ. di Pisa (Italy)
Andrea Macchi, Univ. di Pisa (Italy)
Istituto Nazionale di Ottica, CNR (Italy)


Published in SPIE Proceedings Vol. 8779:
Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III
Eric Esarey; Carl B. Schroeder; Wim P. Leemans; Kenneth W. D. Ledingham; Dino A. Jaroszynski, Editor(s)

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