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Showing 1–5 of 5 results
Advanced filters: Author: Nathan Jukam Clear advanced filters

  • The phase of a laser pulse is usually random, which prevents its use for phase-resolved measurements. Here, the authors seed a quantum cascade laser with coherent terahertz pulses, forcing laser action to start on a fixed phase. This kind of laser could be used as a source in time-domain spectroscopy.

    • Dimitri Oustinov
    • Nathan Jukam
    • Sukhdeep Dhillon
    ResearchOpen Access
    Nature Communications
    Volume: 1, P: 1-6

  • A wavelength-size laser cavity with a movable end mirror enables single-mode operation and 25% fractional tuning of a terahertz quantum cascade laser.

    • Nathan Jukam
    News & Views
    Nature Photonics
    Volume: 13, P: 823-825

  • An amplifier for terahertz pulses is demonstrated using an Auston switch to perform ultrafast gain switching in a quantum cascade laser. The approach may benefit terahertz imaging and sensing schemes as it overcomes the phenomenon of gain clamping, which usually limits the amplification available in a laser.

    • Nathan Jukam
    • Sukhdeep S. Dhillon
    • Jérôme Tignon
    Research
    Nature Photonics
    Volume: 3, P: 715-719

  • Researchers demonstrate all-optical wavelength conversion based on a resonant nonlinear process within a terahertz quantum cascade laser. The wavelength of the pump beam (812 nm) corresponds to the interband transitions of the laser. The researchers measured a power-conversion efficiency of 0.13% in the range of 812–818 nm, which is the highest value obtained for such a device.

    • Julien Madéo
    • Pierrick Cavalié
    • Sukhdeep S. Dhillon
    Research
    Nature Photonics
    Volume: 6, P: 519-524