This report presents the conceptual design of a new European research infrastructure
EuPRAXIA. The concept has been established over the last four years in a unique …

X-ray free-electron lasers (x-ray FELs) give us for the first time the possibility to explore
structures and dynamical processes of atomic and molecular systems at the angstrom …

Free-electron lasers (FELs) are promising devices for generating light with laser-like
properties in the extreme ultraviolet and X-ray spectral regions. Recently, FELs based on the …

We report the first generation of coherent, tunable, variable-polarization, soft X-ray
femtosecond pulses, generated by a seeded free-electron laser (FEL) operating in the fresh …

Many advanced applications of X-ray free-electron lasers require pulse durations and time
resolutions of only a few femtoseconds. To generate these pulses and to apply them in time …

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 …

Accelerator-based light sources such as storage rings and free-electron lasers use
relativistic electron beams to produce intense radiation over a wide spectral range for …

A new facility named SPARC_LAB has been recently launched at the INFN National
Laboratories in Frascati, merging the potentialities of the former projects SPARC and …

We report on the generation of a three-octave-wide supercontinuum extending from the
vacuum ultraviolet (VUV) to the near infrared, spanning at least 113–1000 nm (ie, 11− 1.2 …

Initiating the gain process in a free-electron laser (FEL) from an external highly coherent
source of radiation is a promising way to improve the pulse properties such as temporal …