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Mid-infrared dispersive wave generation in gas-filled photonic crystal fibre by transient ionization-driven changes in dispersion

Author

Listed:
  • F. Köttig

    (Max Planck Institute for the Science of Light)

  • D. Novoa

    (Max Planck Institute for the Science of Light)

  • F. Tani

    (Max Planck Institute for the Science of Light)

  • M. C. Günendi

    (Max Planck Institute for the Science of Light)

  • M. Cassataro

    (Max Planck Institute for the Science of Light)

  • J. C. Travers

    (Max Planck Institute for the Science of Light
    Heriot-Watt University)

  • P. St.J. Russell

    (Max Planck Institute for the Science of Light)

Abstract

Gas-filled hollow-core photonic crystal fibre is being used to generate ever wider supercontinuum spectra, in particular via dispersive wave emission in the deep and vacuum ultraviolet, with a multitude of applications. Dispersive waves are the result of nonlinear transfer of energy from a self-compressed soliton, a process that relies crucially on phase-matching. It was recently predicted that, in the strong-field regime, the additional transient anomalous dispersion introduced by gas ionization would allow phase-matched dispersive wave generation in the mid-infrared—something that is forbidden in the absence of free electrons. Here we report the experimental observation of such mid-infrared dispersive waves, embedded in a 4.7-octave-wide supercontinuum that uniquely reaches simultaneously to the vacuum ultraviolet, with up to 1.7 W of total average power.

Suggested Citation

  • F. Köttig & D. Novoa & F. Tani & M. C. Günendi & M. Cassataro & J. C. Travers & P. St.J. Russell, 2017. "Mid-infrared dispersive wave generation in gas-filled photonic crystal fibre by transient ionization-driven changes in dispersion," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00943-4
    DOI: 10.1038/s41467-017-00943-4
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