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.
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. D., Giovenale; G. D., Pirro; M., Ferrario; G., Gatti; L., Giannessi; Mostacci, Andrea; P., Musumeci; Palumbo, Luigi; A., Petralia; V., Petrillo; R., Pompili; J. V., Rau; A. R., Rossi; C., Vaccarezza; F., Villa. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - 16:(2014), p. 033018. [10.1088/1367-2630/16/3/033018]
Large-bandwidth two-color free-electron laser driven by a comb-like electron beam
E. Chiadroni;MOSTACCI, Andrea;PALUMBO, Luigi;
2014
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
