TY  - JOUR
AU  - Qiao, B.
AU  - Kar, S.
AU  - Geissler, M.
AU  - Gibbon, P.
AU  - Zepf, M.
AU  - Borghesi, M.
TI  - Dominance of Radiation Pressure in Ion Acceleration with Linearly Polarized Pulses at Intensities of 1021  W cm-2
JO  - Physical review letters
VL  - 108
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-20325
SP  - 115002
PY  - 2012
N1  - 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.
AB  - 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).
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000301345000013
DO  - DOI:10.1103/PhysRevLett.108.115002
UR  - https://juser.fz-juelich.de/record/20325
ER  -