Enhancement of ion generation in femtosecond ultraintense laser-foil interactions by defocusing

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Xu, M. H.; Li, Y. T.; Carroll, D. C.; Foster, P. S.; Hawkes, S.; Kar, S.; Liu, F.; Markey, K.; McKenna, P.; Streeter, M. J. V.; Spindloe, C.; Sheng, Z. M.; Wahlström, Claes-Göran; Zepf, M.; Zheng, J.; Zhang, J.; Neely, D.;
(2012)
  • Publisher: American Institute of Physics
  • Journal: issn: 0003-6951
  • Related identifiers: doi: 10.1063/1.3688027
  • Subject: Atom and Molecular Physics and Optics | Atom- och molekylfysik och optik
    arxiv: Physics::Optics

A simple method to enhance ion generation with femtosecond ultraintense lasers is demonstrated experimentally by defocusing laser beams on target surface. When the laser is optimally defocused, we find that the population of medium and low energy protons from ultra-thin... View more
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