THz SASE FEL at PITZ: lasing at a wavelength of 100 μm

Krasilnikov, Mikhail; Adhikari, G.; Aftab, N.; Rossbach, J.; Melkumyan, D.; Gross, Matthias; Davtyan, H.; Richard, C.; Good, J.; Asoyan, A.; Vashchenko, Grygorii; Weilbach, T.; Hillert, W.; Kongmon, E.; Oppelt, A.; Boonpornprasert, P.; Li, Xiaoke; Mohanty, Sandeep; Yurkov, M.; Grebinyk, A.; Aboulbanine, Z.; Qian, H.; Lueangaramwong, A.; Hoffmann, Andreas; Stephan, F.; Schneidmiller, E.; Georgiev, Georgi; Niemczyk, Raffael

doi:10.1088/1742-6596/2687/3/032016

Contribution to a conference proceedings/Journal Article

PUBDB-2025-01950

THz SASE FEL at PITZ: lasing at a wavelength of 100 μm

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.Extern* ; Good, J.DESY* ; Grebinyk, A.DESY* ; Gross, M.DESY* ; Hillert, W.CFEL*Extern* ; Hoffmann, A.XFEL.EU*DESY* ; Kongmon, E.Extern* ; Li, X.Extern* ; Lueangaramwong, A.DESY* ; Melkumyan, D.DESY* ; Mohanty, S.DESY* ; Niemczyk, R.DESY* ; Oppelt, A.DESY* ; Qian, H.DESY* ; Richard, C.DESY* ; Rossbach, J.CFEL*Extern* ; Schneidmiller, E.XFEL.EU*DESY* ; Stephan, F.DESY* ; Vashchenko, G.DESY* ; Weilbach, T.DESY* ; Yurkov, M.XFEL.EU*DESY*

2024
IOP Publ. Bristol

14th International Particle Accelerator Conference, IPAC'23, Venice, Italy, 7 May 2023 - 12 May 2023 Journal of physics / Conference Series IPAC2023(3), 032016 (2024) [10.1088/1742-6596/2687/3/032016]

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Please use a persistent id in citations: doi:10.1088/1742-6596/2687/3/032016 doi:10.3204/PUBDB-2025-01950

Abstract: Development of an accelerator-based tunable THz source prototype for pump-probe experiments at the European XFEL is ongoing at the Photo Injector Test facility at DESY in Zeuthen (PITZ). The proof-of-principle experiments on the THz SASE FEL are performed utilizing the LCLS-I undulator (on loan from SLAC) installed in the PITZ beamline. The first lasing at a center wavelength of 100 μm was observed in the summer of 2022. The lasing of the narrowband THz source was achieved using an electron beam with an energy of ∼17 MeV and a bunch charge up to several nC. Optimization of beam transport and matching resulted in the measurement of THz radiation with a pulse energy of tens of μJ, measured with pyroelectric detectors. The THz FEL gain curves were measured by means of specially designed short coils along the undulator. The results of the first characterization of the THz source at PITZ will be presented.

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