Towards higher frequencies in a compact prebunched waveguide THz-FEL.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
31 Aug 2024
31 Aug 2024
Historique:
received:
04
04
2024
accepted:
18
08
2024
medline:
1
9
2024
pubmed:
1
9
2024
entrez:
31
8
2024
Statut:
epublish
Résumé
Free-electron-lasers fill a critical gap in the space of THz-sources as they can reach high average and peak powers with spectral tunability. Using a waveguide in a THz FEL significantly increases the coupling between the relativistic electrons and electromagnetic field enabling large amounts of radiation to be generated in a single passage of electrons through the undulator. In addition to transversely confining the radiation, the dispersive properties of the waveguide critically affect the velocity and slippage of the radiation pulse which determine the central frequency and bandwidth of the generated radiation. In this paper, we characterize the spectral properties of a compact waveguide THz FEL including simultaneous lasing at two different frequencies and demonstrating tuning of the radiation wavelength in the high frequency branch by varying the beam energy and ensuring that the electrons injected into the undulator are prebunched on the scale of the resonant radiation wavelength.
Identifiants
pubmed: 39217149
doi: 10.1038/s41467-024-51892-8
pii: 10.1038/s41467-024-51892-8
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
7582Subventions
Organisme : DOE | Advanced Research Projects Agency - Energy (Advanced Research Projects Agency - Energy - U.S. Department of Energy)
ID : DE-SC0009914
Organisme : DOE | Advanced Research Projects Agency - Energy - U.S. Department of Energy | Small Business Innovative Research and Small Business Technology Transfer (SBIR/STTR)
ID : DE-SC0018559
Organisme : National Science Foundation (NSF)
ID : PHY-1549132
Organisme : National Science Foundation (NSF)
ID : PHY-1549132
Organisme : DOE | Advanced Research Projects Agency - Energy - U.S. Department of Energy | Small Business Innovative Research and Small Business Technology Transfer (SBIR/STTR)
ID : DE-SC0017102
Organisme : DOE | Advanced Research Projects Agency - Energy - U.S. Department of Energy | Small Business Innovative Research and Small Business Technology Transfer (SBIR/STTR)
ID : DE-SC0018559
Informations de copyright
© 2024. The Author(s).
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