We present the experimental demonstration of a novel scheme for the generation of ultrashort pulse trains based on the FEL lasing from a multi-peaked eletron energy distribution. At SPARC we generated two electron beamlets with relative energy difference larger than the FEL parameter ? by illuminating the cathode with a combed laser, followed by a manipulation of the longitudinal phase space by velocity bunching in the linac. The SASE FEL radiation obtained by sending such beam in the undulator is analyzed by a FROG diagnostic revealing the double-peaked spectrum and temporally modulated pulse structure

Generation of a train of short pulses by means of FEL emission of a combed electron beam / Petrillo, V., Artioli, M., Ciocci, F., Dattoli, G., Petralia, A., Ronsivalle, C., Quattromini, M., Sabia, E., Giannessi, L., Anania, M.P., Bellaveglia, M., Chiadroni, E., Di Giovenale, D., Di Pirro, G., Ferrario, M., Gatti, G., Pompili, R., Vaccarezza, C., Villa, F., Bacci, A., et al.. - ELETTRONICO. - (2013), pp. 2-5. (35th Intern. Free-Electron Laser Conference New York (Manhattan), USA August 26-30, 2013).

Generation of a train of short pulses by means of FEL emission of a combed electron beam.

E. Chiadroni;FERRARIO, MASSIMO;VACCAREZZA, CRISTINA;MOSTACCI, Andrea
2013

Abstract

We present the experimental demonstration of a novel scheme for the generation of ultrashort pulse trains based on the FEL lasing from a multi-peaked eletron energy distribution. At SPARC we generated two electron beamlets with relative energy difference larger than the FEL parameter ? by illuminating the cathode with a combed laser, followed by a manipulation of the longitudinal phase space by velocity bunching in the linac. The SASE FEL radiation obtained by sending such beam in the undulator is analyzed by a FROG diagnostic revealing the double-peaked spectrum and temporally modulated pulse structure
2013
35th Intern. Free-Electron Laser Conference
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Generation of a train of short pulses by means of FEL emission of a combed electron beam / Petrillo, V., Artioli, M., Ciocci, F., Dattoli, G., Petralia, A., Ronsivalle, C., Quattromini, M., Sabia, E., Giannessi, L., Anania, M.P., Bellaveglia, M., Chiadroni, E., Di Giovenale, D., Di Pirro, G., Ferrario, M., Gatti, G., Pompili, R., Vaccarezza, C., Villa, F., Bacci, A., et al.. - ELETTRONICO. - (2013), pp. 2-5. (35th Intern. Free-Electron Laser Conference New York (Manhattan), USA August 26-30, 2013).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/768403
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