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Proceedings Paper

Radiation pressure and radiation reaction effects in laser-solid interaction
Author(s): A. Macchi; M. Tamburini; S. Veghini; F. Pegoraro; A. Di Piazza; C. H. Keitel
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Paper Abstract

The interaction of ultra-high intensity laser pulses with solid targets is studied theoretically and with Particle- In-Cell (PIC) simulations. The regime of Radiation Pressure Acceleration of ultrathin foil targets is investigated within an improved "Light Sail" or "accelerating mirror" model. The latter provides simple and useful scalings for the characteristics of accelerated ions. The underlying dynamics, unfolded by PIC simulations, is however more complex than the simple model may suggest. An important issue is the heating of electrons that, even if strongly reduced by the use of circulary polarized (CP) pulses, may lead to a significant broadening of the ion spectrum. Radiation Reaction (RR) effects in the ultra-relativistic regime of extreme intensities are included in the PIC simulations via the Landau-Lifshitz formula. Apparently, for linearly polarized pulses RR slightly reduces the ion energy but also contributes to cooling the electrons, while RR effects are rather weak for CP pulses.

Paper Details

Date Published: 17 February 2011
PDF: 6 pages
Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 799421 (17 February 2011); doi: 10.1117/12.881906
Show Author Affiliations
A. Macchi, Instituto Nazionale di Ottica, CNR (Italy)
Univ. di Pisa (Italy)
M. Tamburini, Univ. di Pisa (Italy)
S. Veghini, Univ. di Pisa (Italy)
F. Pegoraro, Univ. di Pisa (Italy)
A. Di Piazza, Max-Planck-Institut für Kernphysick (Germany)
C. H. Keitel, Max-Planck-Institut für Kernphysick (Germany)


Published in SPIE Proceedings Vol. 7994:
LAT 2010: International Conference on Lasers, Applications, and Technologies
Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov, Editor(s)

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