We report, with an unequivocal time-domain measurement, that an appropriately chosen undulator taper can compensate for an electron beam longitudinal energy-chirp in a free-electron laser amplifier, leading to the generation of single-spike radiation close to the Fourier limit. The measurements were taken using the frequency-resolved optical gating technique by employing an advanced transient-grating diagnostic geometry. The reconstructed longitudinal radiation characteristics are compared in detail to prediction from time-dependent three-dimensional simulations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4754612]

Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering / Marcus, G., Artioli, M., Bacci, A., Bellaveglia, M., Chiadroni, E., Cianchi, A., Ciocci, F., Del Franco, M., Di Pirro, G., Ferrario, M., Filippetto, D., Gatti, G., Giannessi, L., Labat, M., Mostacci, A., Petralia, A., Petrillo, V., Quattromini, M., Rau, J.v., Rossi, A.r., et al.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - ELETTRONICO. - 101:13(2012), p. 134102. [10.1063/1.4754612]

Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering

E. Chiadroni;MOSTACCI, Andrea;
2012

Abstract

We report, with an unequivocal time-domain measurement, that an appropriately chosen undulator taper can compensate for an electron beam longitudinal energy-chirp in a free-electron laser amplifier, leading to the generation of single-spike radiation close to the Fourier limit. The measurements were taken using the frequency-resolved optical gating technique by employing an advanced transient-grating diagnostic geometry. The reconstructed longitudinal radiation characteristics are compared in detail to prediction from time-dependent three-dimensional simulations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4754612]
2012
01 Pubblicazione su rivista::01a Articolo in rivista
Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering / Marcus, G., Artioli, M., Bacci, A., Bellaveglia, M., Chiadroni, E., Cianchi, A., Ciocci, F., Del Franco, M., Di Pirro, G., Ferrario, M., Filippetto, D., Gatti, G., Giannessi, L., Labat, M., Mostacci, A., Petralia, A., Petrillo, V., Quattromini, M., Rau, J.v., Rossi, A.r., et al.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - ELETTRONICO. - 101:13(2012), p. 134102. [10.1063/1.4754612]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/495755
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