12 May 2015 Seeded FEL with two energy level electron beam distribution at SPARC_LAB
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Abstract
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).
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Fabio Villa, Fabio Villa, David Alesini, David Alesini, Maria Pia Anania, Maria Pia Anania, Marcello Artioli, Marcello Artioli, Alberto Bacci, Alberto Bacci, Marco Bellaveglia, Marco Bellaveglia, Mariano Carpanese, Mariano Carpanese, Michele Castellano, Michele Castellano, Alessandro Cianchi, Alessandro Cianchi, Franco Ciocci, Franco Ciocci, Enrica Chiadroni, Enrica Chiadroni, Giuseppe Dattoli, Giuseppe Dattoli, Domenico Di Giovenale, Domenico Di Giovenale, Emanuele Di Palma, Emanuele Di Palma, Giampiero Di Pirro, Giampiero Di Pirro, Massimo Ferrario, Massimo Ferrario, Francesco Filippi, Francesco Filippi, Alessandro Gallo, Alessandro Gallo, Giancarlo Gatti, Giancarlo Gatti, Luca Giannessi, Luca Giannessi, Anna Giribono, Anna Giribono, Luca Innocenti, Luca Innocenti, Najmeh Sada Mirian, Najmeh Sada Mirian, Andrea Mostacci, Andrea Mostacci, Alberto Petralia, Alberto Petralia, Vittoria Petrillo, Vittoria Petrillo, Riccardo Pompili, Riccardo Pompili, Julietta V. Rau, Julietta V. Rau, Stefano Romeo, Stefano Romeo, Andrea Renato Rossi, Andrea Renato Rossi, Elio Sabia, Elio Sabia, Vladimir Shpakov, Vladimir Shpakov, Ivan P. Spassovsky, Ivan P. Spassovsky, Cristina Vaccarezza, Cristina Vaccarezza, } "Seeded FEL with two energy level electron beam distribution at SPARC_LAB", Proc. SPIE 9512, Advances in X-ray Free-Electron Lasers Instrumentation III, 95120T (12 May 2015); doi: 10.1117/12.2182160; https://doi.org/10.1117/12.2182160
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