Dominance of Radiation Pressure in Ion Acceleration with Linearly Polarized Pulses at Intensities of $10^{21}\text{W}{\text{cm}}^{-2}$

Abstract

A novel regime is proposed where, employing linearly polarized laser pulses at intensities $10^{21}{\text{Wcm}}^{-2}$ as two order of magnitude lower than earlier predicted [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 the regime, ions accelerated from the hole-boring process quickly catch up with the ions accelerated by target normal sheath acceleration (TNSA), and they then join in a single bunch, undergoing a hybrid Light-Sail/TNSA 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 PIC simulations show that $1.26\text{GeV}$ quasimonoenergetic ${\text{C}}^{6+}$ beams are obtained by linearly polarized laser pulses at intensities of $10^{21}{\text{Wcm}}^{-2}$.

6 pages, 4 figures

References in corpus (4)

• Radiation Pressure Dominate Regime of Relativistic Ion Acceleration
• Radiation Pressure Acceleration of Thin Foils with Circularly Polarized Laser Pulses
• "Light Sail" Acceleration Revisited
• Stable laser-driven proton beam acceleration from a two-specie ultra-thin foil

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