The dynamics of the acceleration of ultrathin foil targets by the radiation pressure of superintense, circularly polarized laser pulses is investigated by analytical modeling and particle-in-cell simulations. By addressing self-induced transparency and charge separation effects, it is shown that for "optimal" values of the foil thickness only a thin layer at the rear side is accelerated by radiation pressure. The simple "light sail" model gives a good estimate of the energy per nucleon, but overestimates the conversion efficiency of laser energy into monoenergetic ions.
|Autori:||Macchi A; Veghini S; Pegoraro F|
|Titolo:||"Light Sail" Acceleration Reexamined|
|Anno del prodotto:||2009|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.103.085003|
|Appare nelle tipologie:||1.1 Articolo in rivista|