High-order-harmonic generation and superradiance in a seeded free-electron laser

L. Giannessi, M. Artioli, M. Bellaveglia, F. Briquez, E. Chiadroni, A. Cianchi, M.E. Couprie, G. Dattoli, E. Di Palma, G. Di Pirro, M. Ferrario, D. Filippetto, F. Frassetto, G. Gatti, M. Labat, G. Marcus, A. Mostacci, A. Petralia, V. Petrillo, L. PolettoM. Quattromini, J.V. Rau, J. Rosenzweig, E. Sabia, M. Serluca, I. Spassovsky, V. Surrenti

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Higher order harmonic generation in a free-electron laser amplifier operating in the superradiant regime has been observed. Superradiance has been induced by seeding a single-pass amplifier with the second harmonic of a Ti:sapphire laser, generated in a β-Barium borate crystal, at seed intensities comparable to the free-electron laser saturation intensity. Pulse energy and spectral distributions of the harmonics up to the 11th order have been measured and compared with simulations. © 2012 American Physical Society.
Original languageEnglish
Article number164801
Pages (from-to)-
JournalPhysical Review Letters
Issue number16
Publication statusPublished - 19 Apr 2012
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Giannessi, L., Artioli, M., Bellaveglia, M., Briquez, F., Chiadroni, E., Cianchi, A., ... Surrenti, V. (2012). High-order-harmonic generation and superradiance in a seeded free-electron laser. Physical Review Letters, 108(16), -. [164801]. https://doi.org/10.1103/PhysRevLett.108.164801