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Enhanced efficiency of femtosecond laser-driven proton generation from a two-species target with heavy atoms

  • J. Domański (a1), J. Badziak (a1) and S. Jabłoński (a1)


Using two-dimensional particle-in-cell simulations, the properties of a proton beam generated from a thin erbium hydride target irradiated by a 25 fs laser pulse of intensity ranging from 1020 to 1021 W/cm2 are investigated and compared with the features of a proton beam produced from a hydrocarbon (CH) target. It is shown that in case of using the hydride target the mean proton energy and the number of high-energy (>10 MeV) protons as well as the peak proton pulse intensity can be higher by a factor ~10 than the ones obtained from the CH target.


Corresponding author

Address correspondence and reprint requests to: J. Domański, Institute of Plasma Physics and Laser Microfusion, Hery 23, 01-497 Warsaw, Poland. E-mail:


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