Journal Article

PUBDB-2023-06751

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Experimental Demonstration of Attoseconds-at-Harmonics at the SASE3 Undulator of the European XFEL

Trebushinin, A. (Corresponding author)Extern*XFEL.EU* ; Geloni, G.XFEL.EU* ; Serkez, S.XFEL.EU* ; Mercurio, G.Extern*XFEL.EU* ; Gerasimova, N.XFEL.EU* ; Maltezopoulos, T.XFEL.EU* ; Guetg, M.XFEL.EU*DESY* ; Schneidmiller, E. A.XFEL.EU*DESY*

2023
MDPI Basel

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Please use a persistent id in citations: doi:10.3390/photonics10020131  doi:10.3204/PUBDB-2023-06751

Abstract: We report on observations of single spike spectra (3–13% of events) upon employing a previously proposed method for single spike generation via harmonic conversion. The method was tested at the soft X-ray SASE3 undulator of the European XFEL. The first part of the undulator allows one to amplify bunching at the fundamental as well as the higher harmonics. The downstream undulator is tuned to a harmonic, the fourth in our case, to amplify pulses with a shorter duration. We estimate the generated pulse duration within such a subset of short pulses at a level of 650 as. Considering the demonstrated probability of single spike events, this method is attractive for high repetition-rate free electron lasers.

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Contributing Institute(s):

1. Koordination des XFEL-Beschleunigers (MXL)
2. European XFEL Projekt Team (Eur.XFEL)
3. The European XFEL Users (XFEL-User)
4. Beschleunigerphysik (MPY)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G13 - Accelerator of European XFEL (POF4-6G13) (POF4-6G13)

Experiment(s):

1. Facility (machine) XFEL

Appears in the scientific report 2023

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