Bright attosecond soft X-ray pulse trains by transient phase-matching in two-color high-order harmonic generation

Bernd Schütte, Paul Weber, Katalin Kovács, Emeric Balogh, Balázs Major, Valer Tosa, Songhee Han, Marc J J Vrakking, K. Varjú, Arnaud Rouzée

Research output: Article

19 Citations (Scopus)

Abstract

We study two-color high-order harmonic generation in Neon with 790nm and 1300nm driving laser fields and observe an extremeultraviolet continuum that extends to photon energies of 160eV. Using a 6-mm-long, high pressure gas cell, we optimize the HHG yield at high photon energies and investigate the effect of ionization and propagation under phase-matching conditions that allow us to control the temporal structure of the XUV emission. Numerical simulations that include the 3D propagation of the two-color laser pulse show that a bright isolated attosecond pulse with exceptionally high photon energies can be generated in our experimental conditions due to an efficient hybrid optical and phase-matching gating mechanism.

Original languageEnglish
Pages (from-to)33947-33955
Number of pages9
JournalOptics Express
Volume23
Issue number26
DOIs
Publication statusPublished - dec. 28 2015

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Schütte, B., Weber, P., Kovács, K., Balogh, E., Major, B., Tosa, V., Han, S., Vrakking, M. J. J., Varjú, K., & Rouzée, A. (2015). Bright attosecond soft X-ray pulse trains by transient phase-matching in two-color high-order harmonic generation. Optics Express, 23(26), 33947-33955. https://doi.org/10.1364/OE.23.033947