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.
Two-colour generation in a chirped seeded free-electron laser: A close look / Mahieu, Benoît; Allaria, Enrico; Castronovo, Davide; Danailov, Miltcho B.; Demidovich, Alexander; DE NINNO, Giovanni; Di Mitri, Simone; Fawley, William M.; Ferrari, Eugenio; Fröhlich, Lars; Gauthier, David; Giannessi, Luca; Mahne, Nicola; Penco, Giuseppe; Raimondi, Lorenzo; Spampinati, Simone; Spezzani, Carlo; Svetina, Cristian; Trovò, Mauro; Zangrando, Marco. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 21:19(2013), pp. 22728-22741. [10.1364/OE.21.022728]
Two-colour generation in a chirped seeded free-electron laser: A close look
CASTRONOVO, DAVIDE;DE NINNO, GIOVANNI;FERRARI, EUGENIO;SVETINA, CRISTIAN;TROVÒ, MAURO;
2013-01-01
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.Pubblicazioni consigliate
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