Modeling the fluctuations of Free-Electron-Laser (FEL) radiation
and their effect on the interaction with atoms

Dr. Georgios M. Nikolopoulos
Institute of Electronic Structure and Laser,
Foundation for Research and Technology - Hellas,
P.O. Box 1527, GR-711 10 Heraklion, Greece.

The first part of this talk deals with the statistical properties (fluctuations)
and the numerical simulation of FEL radiation. In the second part, I will
consider the interaction of such a radiation with atoms, focusing in
particular on the effects of its fluctuations on non-linear processes.