Fields of a radially polarized petawatt laser beam, represented by a truncated series in the diffraction angle ϵ to order and focused to subwavelength waist radius, are shown to accelerate protons and bare nuclei to several hundred MeV per nucleon over a distance equivalent to a few laser wavelengths.
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ErrataYousef I. Salamin, "Acceleration in vacuum of bare nuclei by tightly focused radially polarized laser light: erratum," Opt. Lett. 33, 1662-1662 (2008)