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- Title
Efficient ion acceleration by collective laser-driven electron dynamics with ultra-thin foil targets.
- Authors
Steinke, S.; Henig, A.; Schnürer, M.; Sokollik, T.; Nickles, P. V.; Jung, D.; Kiefer, D.; Hörlein, R.; Schreiber, J.; Tajima, T.; Yan, X. Q.; Hegelich, M.; Meyer-Ter-Vehn, J.; Sandner, W.; Habs, D.
- Abstract
Experiments on ion acceleration by irradiation of ultra-thin diamond-like carbon (DLC) foils, with thicknesses well below the skin depth, irradiated with laser pulses of ultra-high contrast and linear polarization, are presented. A maximum energy of 13 MeV for protons and 71 MeV for carbon ions is observed with a conversion efficiency of ∼10%. Two-dimensional particle-in-cell (PIC) simulations reveal that the increase in ion energies can be attributed to a dominantly collective rather than thermal motion of the foil electrons, when the target becomes transparent for the incident laser pulse.
- Subjects
NEUTRON irradiation; PARTICLES (Nuclear physics); NUCLEAR reactions; ELECTRONS; ULTRASHORT laser pulses
- Publication
Laser & Particle Beams, 2010, Vol 28, Issue 1, p215
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1017/S0263034610000157