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Südmeyer, Thomas

Nom
Südmeyer, Thomas
Affiliation principale
Site web
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Directeur
Email
thomas.sudmeyer@unine.ch
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https://libra.unine.ch/handle/123456789/816

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  • Publication
    Accès libre
    Extreme ultraviolet light source at a megahertz repetition rate based on high-harmonic generation inside a mode-locked thin-disk laser oscillator
    Labaye, François
    ;
    Gaponenko, Maxim 
    ;
    Wittwer, Valentin 
    ;
    Diebold, A
    ;
    Paradis, Clément 
    ;
    Modsching, Norbert Paul
    ;
    Merceron, Loïc 
    ;
    Emaury, F
    ;
    Graumann, I.J
    ;
    Phillips, C.R
    ;
    Saraceno, C.J
    ;
    Kränkel, C
    ;
    Keller, Ursula
    ;
    Südmeyer, Thomas 
    We demonstrate a compact extreme ultraviolet (XUV) source based on high-harmonic generation (HHG) driven directly inside the cavity of a mode-locked thin-disk laser oscillator. The laser is directly diode-pumped at a power of only 51 W and operates at a wavelength of 1034 nm and a 17.35 MHz repetition rate. We drive HHG in a high-pressure xenon gas jet with an intracavity peak intensity of 2.8×1013  W/cm2 and 320 W of intracavity average power. Despite the high-pressure gas jet, the laser operates at high stability. We detect harmonics up to the 17th order (60.8 nm, 20.4 eV) and estimate a flux of 2.6×108  photons/s for the 11th harmonic (94 nm, 13.2 eV). Due to the power scalability of the thin-disk concept, this class of compact XUV sources has the potential to become a versatile tool for areas such as attosecond science, XUV spectroscopy, and high-resolution imaging.