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 …

Abstract The Linac Coherent Light Source (LCLS) is an X-ray free-electron laser at the SLAC
National Accelerator Laboratory, which has been operating since 2009 for a wide range of …

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 …

The fourth generation of synchrotron radiation sources, commonly referred to as the Free
Electron Laser (FEL), provides an intense source of brilliant X-ray beams enabling the …

High-energy isolated attosecond pulses required for the most intriguing nonlinear
attosecond experiments as well as for attosecond-pump/attosecond-probe spectroscopy are …

X-ray free-electron lasers (FELs), which amplify light emitted by a relativistic electron beam,
are extending nonlinear optical techniques to shorter wavelengths, adding element …

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 …

X-ray free-electron lasers (XFELs), are widely operated on the basis of self-amplified
spontaneous emission (SASE),, where spontaneous radiation from the electron beam is …

Fully coherent, soft X-ray attosecond pulses are now available through high-order harmonic
generation (HHG); however, the output energy is insufficient for various applications, such …

In March 2012, SACLA started user operations of the first compact X-ray free-electron laser
(XFEL) facility. SACLA has been routinely providing users with stable XFEL light over a wide …