Coherence Properties of Individual Femtosecond Pulses of an X-Ray Free-Electron Laser
Coherence Properties of Individual Femtosecond Pulses of an X-Ray Free-Electron Laser
Measurements of the spatial and temporal coherence of single, femtosecond x-ray pulses generated by the first hard x-ray free-electron laser, the Linac Coherent Light Source, are presented. Single-shot measurements were performed at 780 eV x-ray photon energy using apertures containing double pinholes in "diffract-and-destroy" mode. We determined a coherence length …