Two-colour generation in a chirped seeded Free-Electron Laser

Abstract

We present the experimental demonstration of a method for generating two spectrally and temporally separated pulses by an externally seeded, single-pass free-electron laser operating in the extreme-ultraviolet spectral range. Our results, collected on the FERMI@Elettra facility and confirmed by numerical simulations, demonstrate the possibility of controlling both the spectral and temporal features of the generated pulses. A free-electron laser operated in this mode becomes a suitable light source for jitter-free, two-colour pump-probe experiments.

References in corpus (1)

• Chirped seeded free-electron lasers: self-standing light sources for two-colour pump-probe experiments

Cited by in corpus (4)

• Towards compact Free Electron Laser based on laser plasma accelerators
• Direct Spectro-Temporal Characterization of Femtosecond Extreme-Ultraviolet Pulses
• High-Gain Harmonic Generation with temporally overlapping seed pulses and application to ultrafast spectroscopy
• Spectral-phase interferometry for direct electric-field reconstruction applied to seeded extreme-ultraviolet free-electron lasers