Related Experiment Video
Updated: Dec 10, 2025

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Characterization of soft X-ray FEL pulse duration with two-color photoelectron spectroscopy
Shigeki Owada1, Mizuho Fushitani2, Akitaka Matsuda2
1Japan Synchrotron Radiation Research Institute, 1-1-1 Koto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
Abstract:
The pulse duration of soft X-ray free-electron laser (FEL) pulses of SACLA BL1 (0.2-0.3 nC per bunch, 0.5-0.8 MeV) were characterized by photoelectron sideband measurements. The intensity of the He 1 s-1 photoelectron sidebands generated by a near-infrared femtosecond laser was measured as a function of the time delay between the two pulses using an arrival time monitor. From the width of the cross-correlation trace thus derived, the FEL pulse duration was evaluated to be 28 ± 5 fs full width at half-maximum in the photon energy range between 40 eV and 120 eV.
More Related Videos
Related Concept Videos
UV–Vis Spectroscopy: Molecular Electronic Transitions
Atomic Emission Spectroscopy: Instrumentation
Atomic Spectroscopy: Absorption, Emission, and Fluorescence
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
Atomic Emission Spectroscopy: Overview
Atomic Fluorescence Spectroscopy

