Focusing Dynamics of High-Energy Density, Laser-Driven Ion Beams

S.N. Chen, E. D'Humieres, E. Lefebvre, L. Romagnani, T. Toncian, P. Antici, P. Audebert, E. Brambrink, C.A. Cecchetti, T. Kudyakov, A. Pipahl, Y. Sentoku, M. Borghesi, O. Willi, J. Fuchs

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)
299 Downloads (Pure)


The dynamics of the focusing of laser-driven ion beams produced from concave solid targets was studied. Most of the ion beam energy is observed to converge at the center of the cylindrical targets with a spot diameter of 30 mu m, which can be very beneficial for applications requiring high beam energy densities. Also, unbalanced laser irradiation does not compromise the focusability of the beam. However, significant filamentation occurs during the focusing, potentially limiting the localization of the energy deposition region by these beams at focus. These effects could impact the applicability of such high-energy density beams for applications, e. g., in proton-driven fast ignition.
Original languageEnglish
Article number055001
Number of pages1
JournalPhysical Review Letters
Issue number5
Early online date30 Jan 2012
Publication statusPublished - 03 Feb 2012

ASJC Scopus subject areas

  • General Physics and Astronomy


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