Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

In our talk we show that optical SASE FELs are in reach with next generation short-pulse Petawatt Lasers and low-energy electron accelerators.
We discuss the fundamental problems of optical undulators compared to standard magnetic undulators and present ideas on how to solve these problems.
We furthermore provide insight into the generation of high-energy electron beams with lasers and how this can help to reach X-ray FEL operation on a much smaller scale than with conventional accelerator techniques.
Finally, we try to highlight problems of modelling classical SASE FELs using computer simulations, that migh also occur when modelling FELs in the quantum regime.