Lasers and Particle Beams - From the Ultracold to the Ultrafast

The Creation and Manipulation of Particle Beams using Lasers opens new Paths towards compact, ultrabright Radiation Sources. With the advent of high-intensity, ultrashort Laser Sources it has become possible to accelerate Electrons and Ions with table top Laser Systems in the Laboratory. Moreover, Lasers can be used to cool Ion Beams to millikelvin Temperatures. In my talk I will focus on the Study of Laser-Matter Interaction by realistic large-scale Particle Simulations which can give insight into the complex Plasma Phenomena leading to the Creation of ultrabrilliant Particle Beams. I will introduce the numerical Methods used in these Computer Experiments and draw the Connection towards recent and future Experiments planned at FZD and GSI.