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P: Fachverband Plasmaphysik

P 18: Poster: Theorie/Modellierung

P 18.6: Poster

Mittwoch, 1. April 2009, 17:30–19:30, Foyer des IfP

Radiation Pressure Acceleration by Circularly Polarized Pulses: Three-Dimensional Dynamics and Angular Momentum Absorption — •Tatiana Liseykina^1,2, Dieter Bauer¹, Andrea Macchi^3,4, Francesco Pegoraro³, and Sergei Popruzhenko^1,5 — ¹Max-Planck-Institut für Kernphysik, Heidelberg, Germany — ²Institute of Computational Technologies SD RAS, Novosibirsk, Russia — ³Physics Department, University of Pisa, Italy — ⁴PolyLAB, Pisa, Italy — ⁵Moscow Engineering Physics Institute, Russia

Radiation Pressure Acceleration of thin plasma targets by Circularly Polarized laser pulses is studied by three-dimensional particle-in-cell simulations. The use of flat-top intensity profiles is found to be important to avoid self-induced transparency and to reach high ion energies. A significant degree of absorption of the angular momentum of the laser pulse is observed, giving a signature of irreversible, non-adiabatic effects.