Interatomic or intermolecular Coulombic decay (ICD) is a nonlocal electronic decay
mechanism occurring in weakly bound matter. In an ICD process, energy released by …

This review is focused on free-electron lasers (FELs) in the hard to soft x-ray regime. The
aim is to provide newcomers to the area with insights into: the basic physics of FELs, the …

This review provides a comprehensive overview of the applications of helium nanodroplets
in the study of ensembles of atoms and molecules, ie clusters and complexes. These …

In pioneering work by Cederbaum et al an excitation mechanism was proposed that occurs
only in loosely bound matter (Cederbaum et al 1997 Phys. Rev. Lett. 79 4778): it turned out …

The pulse duration, and, more generally, the temporal intensity profile of free-electron laser
(FEL) pulses, is of utmost importance for exploring the new perspectives offered by FELs; it …

The impact of a highly charged ion onto a solid gives rise to charge exchange between the
ion and target atoms, so that a slow ion gets neutralized in the vicinity of the surface. Using …

Helium nanodroplets, commonly regarded as the 'nearly ideal spectroscopic matrix', are
being actively studied for more than two decades now. While they mostly serve as cold …

Abstract Short wavelength Free-Electron Lasers (FELs) are among the newest light sources
available to scientists to probe a wide range of phenomena, with chemical, physical and …

Ionization of matter by energetic radiation generally causes complex secondary reactions
that are hard to decipher. Using large helium nanodroplets irradiated by extreme ultraviolet …

Ultrafast electron dynamics drive phenomena such as photochemical reactions, catalysis,
and light harvesting. To capture such dynamics in real-time, femtosecond to attosecond light …