New Journal of Physics (Jan 2014)
Large-bandwidth two-color free-electron laser driven by a comb-like electron beam
- C Ronsivalle,
- M P Anania,
- A Bacci,
- M Bellaveglia,
- E Chiadroni,
- A Cianchi,
- F Ciocci,
- G Dattoli,
- D Di Giovenale,
- G Di Pirro,
- M Ferrario,
- G Gatti,
- L Giannessi,
- A Mostacci,
- P Musumeci,
- L Palumbo,
- A Petralia,
- V Petrillo,
- R Pompili,
- J V Rau,
- A R Rossi,
- C Vaccarezza,
- F Villa
Affiliations
- C Ronsivalle
- ENEA C.R. Frascati , Via E. Fermi, I-45-00044 Frascati, Roma, Italy
- M P Anania
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- A Bacci
- INFN-Milano and Università di Milano , Via Celoria, I-16-20133 Milano, Italy
- M Bellaveglia
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- E Chiadroni
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- A Cianchi
- INFN-Roma Tor Vergata and Università di Roma Tor Vergata , Via della Ricerca Scientifica, I-1-00133 Roma, Italy
- F Ciocci
- ENEA C.R. Frascati , Via E. Fermi, I-45-00044 Frascati, Roma, Italy
- G Dattoli
- ENEA C.R. Frascati , Via E. Fermi, I-45-00044 Frascati, Roma, Italy
- D Di Giovenale
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- G Di Pirro
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- M Ferrario
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- G Gatti
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- L Giannessi
- ENEA C.R. Frascati , Via E. Fermi, I-45-00044 Frascati, Roma, Italy
- A Mostacci
- Department of Basic and Applied Sciences for Engineering (SBAI), ‘Sapienza’ University of Rome and INFN Roma I , Roma, Italy
- P Musumeci
- UCLA , Los Angeles, California 90095, USA
- L Palumbo
- Department of Basic and Applied Sciences for Engineering (SBAI), ‘Sapienza’ University of Rome and INFN Roma I , Roma, Italy
- A Petralia
- ENEA C.R. Frascati , Via E. Fermi, I-45-00044 Frascati, Roma, Italy
- V Petrillo
- INFN-Milano and Università di Milano , Via Celoria, I-16-20133 Milano, Italy
- R Pompili
- INFN-Roma Tor Vergata and Università di Roma Tor Vergata , Via della Ricerca Scientifica, I-1-00133 Roma, Italy
- J V Rau
- ISM-CNR Via del Fosso del Cavaliere , I-100-00133 Roma, Italy
- A R Rossi
- INFN-Milano and Università di Milano , Via Celoria, I-16-20133 Milano, Italy
- C Vaccarezza
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- F Villa
- INFN-LNF , Via E. Fermi, I-40-00044 Frascati, Roma, Italy
- DOI
- https://doi.org/10.1088/1367-2630/16/3/033018
- Journal volume & issue
-
Vol. 16,
no. 3
p. 033018
Abstract
We discuss a two-color SASE free-electron laser (FEL) amplifier where the time and energy separation of two separated radiation pulses are controlled by manipulation of the electron beam phase space. Two electron beamlets with adjustable time and energy spacing are generated in an RF photo-injector illuminating the cathode with a comb-like laser pulse followed by RF compression in the linear accelerator. We review the electron beam manipulation technique to generate bunches with time and energy properties suitable for driving two-color FEL radiation. Experimental measurements at the SPARC-LAB facility illustrate the flexibility of the scheme for the generation of two-color FEL spectra.
Keywords
- high brightness electron beams
- bunch train
- velocity bunching
- free-electron laser
- two-color radiation
- 74.20.-z
