Quantum cascade lasers as super terahertz local oscillators for astronomy

    Research output: ThesisDissertation (TU Delft)

    22 Downloads (Pure)

    Abstract

    Quantum cascade laser (QCL) technology has made a breakthrough in THz radiation sources, opening a new window into variety of applications. QCLs are compact, low-consumption and narrow linewidth lasers with relatively high output powers, capable to emit radiation across the whole super-THz (2-6 THz) range. These are all demanded for spectroscopy, which is so interesting in THz due to the fingerprint molecular rotational absorption/emission spectrums. Among many other potential applications of spectroscopy including chemical identification, security checking and biomedical diagnosis, high-resolution probing of celestial fine structured lines is prominent for addressing the human permanently staying curiosity about the origins of stars, galaxies and the Universe...
    Original languageEnglish
    Awarding Institution
    • Delft University of Technology
    Supervisors/Advisors
    • Kouwenhoven, L.P., Supervisor
    • Gao, J.R., Advisor
    Award date4 Sep 2018
    Print ISBNs978-90-8593-353-3
    DOIs
    Publication statusPublished - 2018

    Keywords

    • terahertz
    • quantum cascade laser
    • local oscillator
    • astronomy

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