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P: Fachverband Plasmaphysik
P 5: Sonstiges
P 5.3: Vortrag
Montag, 30. März 2009, 18:00–18:15, INP-Staffelgeschoß
Generation of proton bunches by ultra-short laser pulses with high contrast — •Sven Steinke1, Matthias Schnuerer1, Thomas Sokollik1, Peter Nickles1, Wolfgang Sandner1, Andreas Henig2, Daniel Jung2, Daniel Kiefer2, Dietrich Habs2, and Alexander Andreev3 — 1Max-Born-Institut, Max Born Str. 2a, D-12489 Berlin, Germany — 2Max-Planck-Institut, Hofgartenstrasse 8, D-80539 Muenchen, Germany — 3Research Institute for Laser Physics, St. Petersburg, Russia
Laser accelerated ion or proton bunches offer advantages compared to those generated by conventional accelerators, like better emittance and shorter pulse duration.
We present our results on the acceleration of proton/ ion bunches created by ultra-short laser pulses of ultra-thin (d < λ) foils. To approach this regime, where the target becomes more and more transparent for the laser, we developed a so called double-plasma mirror to increase the intensity contrast of the laser pulse by several orders of magnitude up to 1012. It will be shown how the features of the proton/ ion bunches depend on the laser pulse parameters, like intensity and contrast of the laser pulse. The results will be discussed on the base of analytical calculation and PIC simulations.
This work is partly supported by the DFG SFB/ Transregio 18 project.