Articolo in rivista, 2008, ENG, 10.1103/PhysRevLett.101.115001

Theory of Light-Ion Acceleration Driven by a Strong Charge Separation

Passoni M.; Lontano M.

Istituto di Fisica del Plasma "P.Caldirola", CNR; Politecnico di Milano

A theoretical model of the quasistatic electric field, formed at the rear surface of a thin solid target irradiated by a ultraintense subpicosecond laser pulse, due to the appearance of a cloud of ultrarelativistic bound electrons, is developed. It allows one to correctly describe the spatial profile of the accelerating field and to predict the maximum energies and the energy spectra of the accelerated ions. The agreement of the theoretical expectations with the experimental data looks satisfactory in a wide range of conditions. Previsions of regimes achievable in the future are given.

Physical review letters (Print) 101 (11), pp. 115001–?

Keywords

laser-ion acceleration, laser-plasma interaction, ultra-intense laser pulses, charge separation, ultra-relativistic electrons

CNR authors

Passoni Matteo, Lontano Maurizio Giuseppe

CNR institutes

IFP – Istituto di fisica del plasma "Piero Caldirola"