Author/Authors :
Aurand، نويسنده , , B. and Kuschel، نويسنده , , S. and Jنckel، نويسنده , , O. and Rِdel، نويسنده , , C. and Zhao، نويسنده , , H.Y. and Herzer، نويسنده , , S. and Paz، نويسنده , , A.E. and Bierbach، نويسنده , , J. and Polz، نويسنده , , Charles J. and Elkin، نويسنده , , B. and Karmakar، نويسنده , , A. and Gibbon، نويسنده , , P. and Kaluza، نويسنده , , M.C. and Kuehl، نويسنده , , T.، نويسنده ,
Abstract :
Within the last decade, laser-ion acceleration has become a field of broad interest. The possibility to generate short proton- or heavy ion bunches with an energy of a few tens of MeV by table-top laser systems could open new opportunities for medical or technical applications. Nevertheless, todayʹs laser-acceleration schemes lead mainly to a temperature-like energy distribution of the accelerated ions, a big disadvantage compared to mono-energetic beams from conventional accelerators. Recent results [1] of laser-ion acceleration using radiation-pressure appear promising to overcome this drawback. In this paper, we demonstrate the influence of a second counter-propagating laser pulse interacting with a nm-thick target, creating a well defined pre-plasma.
