Evolution of energy spectrum from laser-accelerated protons with a 100 fs intense prepulse

Y. Glinec, G. Genoud, O. Lundh, A. Persson, C. G. Wahlström

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)


A parametric study is reported where a femtosecond prepulse is used to change the target properties before the interaction with a multi-terawatt laser pulse which accelerates protons from a foil target. The proton spectrum as function of the prepulse delay and intensity, up to 1.5 ns and up to 3×1016 W/cm2, respectively, shows a global decrease of the maximum proton energy with delay and intensity. However, under appropriate conditions, it is found that the maximum proton energy increases by more than 10% and that the spectral shape changes.

Original languageEnglish
Pages (from-to)317-321
Number of pages5
JournalApplied Physics B: Lasers and Optics
Issue number2-3
Publication statusPublished - 1 Nov 2008
MoE publication typeNot Eligible


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