A new Method to Determine the Resonance Frequency in QEPAS

Philipp Breitegger (Speaker), Lang, B. (Contributor), Bergmann, A. (Contributor)

    Activity: Talk or presentationTalk at conference or symposiumScience to science

    Description

    We present a novel method to determine the resonance frequency and Q factor of a quartz tuning fork (QTF) in quartz-enhanced photoacoustic spectroscopy (QEPAS) in a few seconds. A CHIRP modulates a laser diode.
    Period17 May 2018
    Event title2018 Conference on Lasers and Electro-Optics, CLEO 2018
    Event typeConference
    LocationSan Jose, United States
    Degree of RecognitionInternational

    Keywords

    • Chirp modulation
    • Diode lasers
    • Fast Fourier transforms
    • Frequency modulated lasers
    • Modulation
    • Q factor