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 …

Photoionization of atoms and molecules is one of the fastest processes in nature. The
understanding of the ultrafast temporal dynamics of this process often requires the …

Intense, mutually coherent beams of multiharmonic extreme ultraviolet light can now be
created using seeded free-electron lasers, and the phase difference between harmonics can …

The design of an angular array of electron time-of-flight (eToF) spectrometers is reported,
intended for non-invasive spectral, temporal, and polarization characterization of single …

An all-optical, near-resonant laser atom trap is used to prepare an electronically excited and
polarized gas target at mK-temperature for complete photo-ionization studies. As a proof-of …

We report angle-resolved measurements on photoelectrons emitted upon near-threshold
two-photon double ionization (TPDI) of Kr irradiated by free-electron laser (FEL) pulses …

In this paper we study the emergence of two-electron wave packets following the two-photon
ionization of helium with intense near-femtosecond pulses. Monitoring the dynamics of the …

We report on the design and capabilities of a reaction microscope (REMI) end-station at the
Shanghai Soft X-ray Free-Electron Laser Facility (SXFEL). This apparatus allows high …

New information demonstrating the importance of both sequential and simultaneous (or
direct) multiphoton ionization of inner shell electrons from neon is discussed in this paper …

Modern free-electron lasers generate a highly intense polarized radiation which initiates a
sequence of ionization and decay events. Their probability depends on the polarization of …