Extreme ultraviolet fourier-transform spectroscopy with high order harmonics

M Kovacev, SV Fomichev, E Priori, Y Mairesse, H Merdji, P Monchicourt, P Breger, Johan Norin, Anders Persson, Anne L'Huillier, Claes-Göran Wahlström, B Carre, P Salieres

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We demonstrate a new scheme for extreme ultraviolet (xuv) Fourier-transform spectroscopy based on the generation of two phase-locked high-harmonic beams. It allows us to measure for the first time interferograms at wavelengths as short as 90 nm, and open the perspective of performing high-resolution Fourier-transform absorption spectroscopy in the xuv. Our measurements also demonstrate that a precise control of the relative phase of harmonic pulses can be obtained with an accuracy on an attosecond time scale, of importance for future xuv pump-xuv probe attosecond spectroscopy.
Original languageEnglish
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2005

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics


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