High-Gain Harmonic Generation with temporally overlapping seed pulses and application to ultrafast spectroscopy

Andreas Wituschek, Lukas Bruder, Enrico Allaria +22

Collinear double-pulse seeding of the High-Gain Harmonic Generation (HGHG) process in a free-electron laser (FEL) is a promising approach to facilitate various coherent nonlinear s…