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, B., Allaria, E., Castronovo, D., Danailov, M.B., Demidovich, A., DE NINNO, G., Di Mitri, S., Fawley, W.M., Ferrari, E., Fröhlich, L., Gauthier, D., Giannessi, L., Mahne, N., Penco, G., Raimondi, L., Spampinati, S., Spezzani, C., Svetina, C., Trovò, M., Zangrando, M.. - 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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