On the effect of rear-surface dielectric coatings on laser-driven proton acceleration

Betti, S.; Cecchetti, C. A.; Förster, E.; Gamucci, A.; Giulietti, A.; Giulietti, D.; Kämpfer, T.; Köster, P.; Labate, L.; Levato, T.; Lübcke, A.; Uschmann, I.; Zamponi, F.; Gizzi, L. A.
October 2009
Physics of Plasmas;Oct2009, Vol. 16 Issue 10, p100701
Academic Journal
Laser-driven ion acceleration has been experimentally investigated by irradiating, with tightly focused femtosecond laser pulses at 5×1019 W/cm2, thin metal foils, which have been back-coated with a μm thick dielectric layer. The observation we report shows the production of MeV proton bunches with an unexpected highly uniform spatial cross section.


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