Journal Article

PUBDB-2023-06701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Sub-50 fs temporal resolution in an FEL-optical laser pump-probe experiment at FLASH2

Tul Noor, A. (Corresponding author)DESY* ; Kumar, S.DESY* ; Schirmel, N.Extern*DESY* ; Erk, B.XFEL.EU*DESY* ; Manschwetus, B.Extern*DESY* ; Alisauskas, S.DESY* ; Braune, M.XFEL.EU*DESY* ; Cirmi, G.CFEL*DESY* ; Czwalinna, M. K.DESY* ; Fruehling, U.DESY* ; Große-Wortmann, U.DESY* ; Kschuev, N.DESY* ; Kuschewski, F.Extern* ; Lang, T.DESY* ; Lindenblatt, H.Extern* ; Litvinyuk, I.Extern* ; Meister, S.Extern* ; Moshammer, R.Extern* ; Papadopoulou, C.DESY* ; Passow, C.XFEL.EU*DESY* ; Rönsch-Schulenburg, J.DESY* ; Trost, F.Extern*XFEL.EU* ; Hartl, I.DESY* ; Duesterer, S.XFEL.EU*DESY* ; Schulz, S.XFEL.EU*DESY*

2024
Optica Washington, DC

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Please use a persistent id in citations: doi:10.1364/OE.513714  doi:10.3204/PUBDB-2023-06701

Abstract: High temporal resolution is essential for ultra-fast pump-probe experiments. Arrival time jitter and drift measurements, as well as their control, become critical especially when combining XUV or X-ray free-electron lasers (FELs) with optical lasers due to the large scale of such facilities and their distinct pulse generation processes. This paper presents the application of a laser pulse arrival time monitor that actively corrects the arrival time of an optical laser relative to the FEL's main optical clock. Combined with post-analysis single pulse jitter correction this new approach improves the temporal resolution for pump-probe experiments significantly. Benchmark measurements on photo-ionization of xenon atoms performed at beamline FL26, FLASH in Hamburg, Germany, demonstrate a sub-50 fs FWHM overall temporal resolution

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Contributing Institute(s):

1. FLASH Wissenschaftlicher Nutzerbetrieb (FS-FLASH-O)
2. Laser Forschung und Entwicklung (FS-LA)
3. Strahlkontrollen (MSK)
4. DOOR-User (DOOR ; HAS-User)
5. FLASH Photonen-Diagnose und Steuerungen (FS-FLASH-D)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)
3. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. FLASH2 Beamline FL26 (FLASH2)
2. FLASH 2020+ Project
3. PETRA Beamline P13 (PETRA III)

Appears in the scientific report 2024

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