Large-bandwidth two-color free-electron laser driven by a comb-like electron beam

C. Ronsivalle, M.P. Anania, A. Bacci, M. Bellaveglia, E. Chiadroni, A. Cianchi, F. Ciocci, G. Dattoli, D. Di Giovenale, G. Di Pirro, M. Ferrario, G. Gatti, L. Giannessi, A. Mostacci, P. Musumeci, L. Palumbo, A. Petralia, V. Petrillo, R. Pompili, J.V. RauA.R. Rossi, C. Vaccarezza, F. Villa

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We discuss a two-color SASE free-electron laser (FEL) amplifier where the time and energy separation of two separated radiation pulses are controlled by manipulation of the electron beam phase space. Two electron beamlets with adjustable time and energy spacing are generated in an RF photo-injector illuminating the cathode with a comb-like laser pulse followed by RF compression in the linear accelerator. We review the electron beam manipulation technique to generate bunches with time and energy properties suitable for driving two-color FEL radiation. Experimental measurements at the SPARC-LAB facility illustrate the flexibility of the scheme for the generation of two-color FEL spectra. © 2014 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Original languageEnglish
Article number033018
Pages (from-to)-
JournalNew Journal of Physics
Publication statusPublished - 2014
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ronsivalle, C., Anania, M. P., Bacci, A., Bellaveglia, M., Chiadroni, E., Cianchi, A., ... Villa, F. (2014). Large-bandwidth two-color free-electron laser driven by a comb-like electron beam. New Journal of Physics, 16, -. [033018].