Journal Article

PUBDB-2025-01236

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png First high peak and average power single-pass THz free-electron laser in operation

Krasilnikov, M. (Corresponding author)DESY* ; Aboulbanine, Z.Extern* ; Adhikari, G.DESY* ; Aftab, N.DESY* ; Asoyan, A.Extern* ; Boonpornprasert, P.DESY* ; Davtyan, H.Extern* ; Georgiev, G.DESY* ; Good, J.DESY* ; Grebinyk, A.DESY* ; Gross, M.DESY* ; Hoffmann, A.XFEL.EU*DESY* ; Kongmon, E.Extern* ; Li, X.DESY* ; Lueangaramwong, A.DESY* ; Melkumyan, D.DESY* ; Mohanty, S.DESY* ; Niemczyk, R.DESY* ; Oppelt, A.DESY* ; Qian, H.DESY* ; Richard, C.DESY* ; Stephan, F.DESY* ; Vashchenko, G.DESY* ; Weilbach, T.DESY* ; Zhang, X. ; Tischer, M.DESY* ; Schneidmiller, E.XFEL.EU*DESY* ; Vagin, P.DESY* ; Yurkov, M.XFEL.EU*DESY* ; Zapolnova, E.DESY* ; Hillert, W.CFEL*Extern* ; Rossbach, J. ; Brachmann, A. ; Holtkamp, N. ; Nuhn, H.-D.

2025
American Physical Society College Park, MD

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Please use a persistent id in citations: doi:10.1103/PhysRevAccelBeams.28.030701  doi:10.3204/PUBDB-2025-01236

Abstract: We report on the operation of the first high peak and average power single-pass terahertz free-electron laser (THz FEL) based on a high-brightness photoinjector for developing a THz source for pump-probe experiments at advanced x-ray FELs (XFELs). Electron beams with 17  MeV/c momentum and charge up to 2.4 nC were used to generate narrow-band 3 THz radiation with pulse energies of more than 0.1 mJ. The novelty of the realized method is that the undulator radiation by electron beams is much longer than the radiation wavelength, with FEL starting from coherent beam contribution rather than shot noise. This proved to be not a simple scaling of the XFEL mechanism due to the significant role of the bunching factor in the considered case.

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Contributing Institute(s):

1. Technologie (Z_PITZ)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. Photo Injector Test Facility

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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