The possibility to accelerate electron beams to ultra-relativistic velocities over short distances by using plasma-based technology holds the potential for a revolution in the field of particle accelerators. The compact nature of plasma-based accelerators would allow the realization of table-top machines capable of driving a free-electron laser (FEL), a formidable tool to investigate matter at the sub-atomic level by generating coherent light pulses with sub-ångström wavelengths and sub-femtosecond durations. So far, however, the high-energy electron beams required to operate FELs had to be obtained through the use of conventional large-size radio-frequency (RF) accelerators, bound to a sizeable footprint as a result of their limited accelerating fields. Here we report the experimental evidence of FEL lasing by a compact (3-cm) particle-beam-driven plasma accelerator. The accelerated beams are completely characterized in the six-dimensional phase space and have high quality, comparable with state-of-the-art accelerators. This allowed the observation of narrow-band amplified radiation in the infrared range with typical exponential growth of its intensity over six consecutive undulators. This proof-of-principle experiment represents a fundamental milestone in the use of plasma-based accelerators, contributing to the development of next-generation compact facilities for user-oriented applications.

Free-electron lasing with compact beam-driven plasma wakefield accelerator / Pompili, R.; Alesini, D.; Anania, M. P.; Arjmand, S.; Behtouei, M.; Bellaveglia, M.; Biagioni, A.; Buonomo, B.; Cardelli, F.; Carpanese, M.; Chiadroni, E.; Cianchi, A.; Costa, G.; Del Dotto, A.; Del Giorno, M.; Dipace, F.; Doria, A.; Filippi, F.; Galletti, M.; Giannessi, L.; Giribono, A.; Iovine, P.; Lollo, V.; Mostacci, A.; Nguyen, F.; Opromolla, M.; Di Palma, E.; Pellegrino, L.; Petralia, A.; Petrillo, V.; Piersanti, L.; Di Pirro, G.; Romeo, S.; Rossi, A. R.; Scifo, J.; Selce, A.; Shpakov, V.; Stella, A.; Vaccarezza, C.; Villa, F.; Zigler &, A.; Ferrario, M.. - In: NATURE. - ISSN 0028-0836. - (2022). [10.1038/s41586-022-04589-1]

Free-electron lasing with compact beam-driven plasma wakefield accelerator

S. Arjmand;M. Behtouei;E. Chiadroni;P. Iovine;A. Mostacci;
2022

Abstract

The possibility to accelerate electron beams to ultra-relativistic velocities over short distances by using plasma-based technology holds the potential for a revolution in the field of particle accelerators. The compact nature of plasma-based accelerators would allow the realization of table-top machines capable of driving a free-electron laser (FEL), a formidable tool to investigate matter at the sub-atomic level by generating coherent light pulses with sub-ångström wavelengths and sub-femtosecond durations. So far, however, the high-energy electron beams required to operate FELs had to be obtained through the use of conventional large-size radio-frequency (RF) accelerators, bound to a sizeable footprint as a result of their limited accelerating fields. Here we report the experimental evidence of FEL lasing by a compact (3-cm) particle-beam-driven plasma accelerator. The accelerated beams are completely characterized in the six-dimensional phase space and have high quality, comparable with state-of-the-art accelerators. This allowed the observation of narrow-band amplified radiation in the infrared range with typical exponential growth of its intensity over six consecutive undulators. This proof-of-principle experiment represents a fundamental milestone in the use of plasma-based accelerators, contributing to the development of next-generation compact facilities for user-oriented applications.
2022
Free-electron laser; plasma-based accelerators; high gradient
01 Pubblicazione su rivista::01a Articolo in rivista
Free-electron lasing with compact beam-driven plasma wakefield accelerator / Pompili, R.; Alesini, D.; Anania, M. P.; Arjmand, S.; Behtouei, M.; Bellaveglia, M.; Biagioni, A.; Buonomo, B.; Cardelli, F.; Carpanese, M.; Chiadroni, E.; Cianchi, A.; Costa, G.; Del Dotto, A.; Del Giorno, M.; Dipace, F.; Doria, A.; Filippi, F.; Galletti, M.; Giannessi, L.; Giribono, A.; Iovine, P.; Lollo, V.; Mostacci, A.; Nguyen, F.; Opromolla, M.; Di Palma, E.; Pellegrino, L.; Petralia, A.; Petrillo, V.; Piersanti, L.; Di Pirro, G.; Romeo, S.; Rossi, A. R.; Scifo, J.; Selce, A.; Shpakov, V.; Stella, A.; Vaccarezza, C.; Villa, F.; Zigler &, A.; Ferrario, M.. - In: NATURE. - ISSN 0028-0836. - (2022). [10.1038/s41586-022-04589-1]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1664417
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