Kilohertz extreme-ultraviolet light source based on femtosecond high-order harmonic generation from noble gases

N.A. Papadogiannis 1, 2 C. Kalpouzos 1 E. Goulielmakis 1, 2 G. Nersisyan 1, 3 D. Charalambidis 1, 2 Frederika Auge-Rochereau 4 F. Weihe 4 Philippe Balcou 4
1 Foundation for Research and Technology-Hellas
2 Physics Department
3 IPR - Institute for Physical Research
4 LOA - Laboratoire d'optique appliquée
Abstract : A compact, versatile table-top kilohertz source of coherent extreme-ultraviolet (XUV) radiation in the wavelength region 18–100 nm, based on high-order harmonic generation from noble gases induced by a 40-femtosecond Ti:sapphire laser system, is presented. The XUV beamline delivers at its output 10^8 photons/s at a wavelength of 23 nm. The monochromatized XUV radiation is directly focused onto a 10^-2-mm^2 spot by a toroidal grating, allowing one to reach intensities higher than 10^6 W/cm^2. Optimization results are presented for a new XUV-generating geometry, utilizing a ‘semi-infinite' quasi-static gas cell and strong focusing. In those conditions, we observe an anomalous inversion between the cutoffs of argon and krypton, with the krypton spectrum extending to much higher orders than expected in an adiabatic limit.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00523425
Contributor : Thuy Le <>
Submitted on : Tuesday, October 5, 2010 - 11:34:04 AM
Last modification on : Monday, October 21, 2019 - 4:00:15 PM

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N.A. Papadogiannis, C. Kalpouzos, E. Goulielmakis, G. Nersisyan, D. Charalambidis, et al.. Kilohertz extreme-ultraviolet light source based on femtosecond high-order harmonic generation from noble gases. Applied Physics B - Laser and Optics, Springer Verlag, 2001, 73 (7), pp.687-692. ⟨10.1007/s003400100734⟩. ⟨hal-00523425⟩

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