Seeded FEL with two energy level electron beam distribution at SPARC-lab

Fabio Villa, David Alesini, Maria Pia Anania, Marcello Artioli, Alberto Bacci, Marco Bellaveglia, Mariano Carpanese, Michele Castellano, Alessandro Cianchi, Franco Ciocci, Enrica Chiadroni, Giuseppe Dattoli, Domenico Di Giovenale, Emanuele Di Palma, Giampiero Di Pirro, Massimo Ferrario, Francesco Filippi, Alessandro Gallo, Giancarlo Gatti, Luca GiannessiAnna Giribono, Luca Innocenti, Najmeh Sada Mirian, Andrea Mostacci, Alberto Petralia, Vittoria Petrillo, Riccardo Pompili, Julietta V. Rau, Stefano Romeo, Andrea R. Rossi, Elio Sabia, Vladimir Shpakov, Ivan P. Spassovsky, Cristina Vaccarezza

Research output: Contribution to conferencePaper


We present the experimental evidence of the generation of coherent and statistically stable Free-Electron Laser (FEL) two color radiation obtained by seeding an electron double peaked beam in time and energy with a single peaked laser pulse. The FEL radiation presents two neat spectral lines, with time delay, frequency separation and relative intensity that can be accurately controlled. The analysis of the emission shows a temporal coherence and regularity in frequency significantly enhanced with respect to the Self Amplified Spontaneous Emission (SASE).
Original languageEnglish
Publication statusPublished - 2015
Externally publishedYes
EventAdvances in X-Ray Free-Electron Lasers Instrumentation III - Prague, Czech Republic
Duration: 1 Jan 2015 → …


ConferenceAdvances in X-Ray Free-Electron Lasers Instrumentation III
CountryCzech Republic
Period1/1/15 → …


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Villa, F., Alesini, D., Anania, M. P., Artioli, M., Bacci, A., Bellaveglia, M., ... Vaccarezza, C. (2015). Seeded FEL with two energy level electron beam distribution at SPARC-lab. Paper presented at Advances in X-Ray Free-Electron Lasers Instrumentation III, Prague, Czech Republic.