Université Paul Sabatier, France
E. Suraud is a Professor at Université Paul Sabatier, France. He has published 171 articles in international journals with peer (including 16 articles review and book chapters) plus five general purpose items (refereed), 85 conference proceedings (including 28 referrals), 127 invited presentations at conferences, 48 oral contributions in other conferences, 76 invited seminars in laboratories
We discuss microscopic mechanisms of irradiation in clusters and molecules. We consider the case of isolated molecules/clusters  and/or in contact with an environment . We use Time Dependent Density Functional Theory (for electrons) coupled to Molecular Dynamics (for ions) and follow explicitly in time both irradiation and response of the system. Examples are taken from free metal clusters, from fullerenes, from molecules of biological interest and from clusters deposited on a surface or embedded in a matrix [3,4]. We analyse in particular the properties of emitted electrons (photo electron spectra, angular distributions...) which constitute a key tool of analysis of the properties of irradiated clusters and molecules . We also discuss the possibility of pump and probe scenarios (opening the road to manipulation at the molecular scale) with help of dedicated laser pulses, exploring high laser frequencies towards the FEL regime and very short times scales down towards the attosecond domain.