%0 Journal Article
%A Qiao, B.
%A Kar, S.
%A Geissler, M.
%A Gibbon, P.
%A Zepf, M.
%A Borghesi, M.
%T Dominance of Radiation Pressure in Ion Acceleration with Linearly Polarized Pulses at Intensities of 1021  W cm-2
%J Physical review letters
%V 108
%@ 0031-9007
%C College Park, Md.
%I APS
%M PreJuSER-20325
%P 115002
%D 2012
%Z We acknowledge helpful discussions with A. Macchi, J. Schreiber, and B. Dromey. The work is supported by EPSRC (Grants No. EP/E035728/1 and No. EP/D/06337X/1). Computing resources from e-Science facility of RAL-STFC are also acknowledged.
%X A novel regime is proposed where, by employing linearly polarized laser pulses at intensities 10(21) W cm(-2) (2 orders of magnitude lower than discussed in previous work [T. Esirkepov et al., Phys. Rev. Lett. 92, 175003 (2004)]), ions are dominantly accelerated from ultrathin foils by the radiation pressure and have monoenergetic spectra. In this regime, ions accelerated from the hole-boring process quickly catch up with the ions accelerated by target normal sheath acceleration, and they then join in a single bunch, undergoing a hybrid light-sail-target normal sheath acceleration. Under an appropriate coupling condition between foil thickness, laser intensity, and pulse duration, laser radiation pressure can be dominant in this hybrid acceleration. Two-dimensional particle-in-cell simulations show that 1.26 GeV quasimonoenergetic C6+ beams are obtained by linearly polarized laser pulses at intensities of 10(21) W cm(-2).
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000301345000013
%R 10.1103/PhysRevLett.108.115002
%U https://juser.fz-juelich.de/record/20325