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. Poletto
- M. Quattromini
- J. V. Rau
- J. Rosenzweig
- E. Sabia
- M. Serluca
- I. Spassovsky
- V. Surrenti
Publication date
April 2012
DOI Publisher
American Physical Society (APS)Abstract
Higher order harmonic generation in a free-electron laser amplifier operating in the superradiant regime [R.\u2009H. Dicke, Phys. Rev. 93, 99 (1954).] 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 \u3b2-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
Add to ORKG