• DocumentCode
    644626
  • Title

    THz quantum cascade laser-based quartz enhanced photo-acoustic sensor

  • Author

    Spagnolo, V. ; Borri, S. ; Patimisco, P. ; Sampaolo, Angelo ; Calabrese, Paolo P. ; Beere, H.E. ; Ritchie, D.A. ; Vitiello, M.S. ; Scamarcio, G.

  • Author_Institution
    Dipt. Interateneo di Fis., Univ. e Politec. di Bari, Bari, Italy
  • fYear
    2013
  • fDate
    1-6 Sept. 2013
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    We report on the first demonstration of a quartz enhanced photo-acoustic (QEPAS) sensor in the Terahertz (THz) range. The sensor is based on a QCL emitting at 3.93 THz and a customized quartz tuning fork. For methanol detection we reached a normalized noise-equivalent absorption of 2×10-10 cm-1W/Hz½ comparable with the best result of mid-IR QEPAS.
  • Keywords
    chemical variables measurement; crystal resonators; photoacoustic spectroscopy; quantum cascade lasers; quartz; sensors; QCL; QEPAS sensor; SiO2; frequency 3.93 THz; quartz enhanced photoacoustic sensor; quartz tuning fork; terahetz quantum cascade laser; Absorption; Frequency measurement; Methanol; Quantum cascade lasers; Resonant frequency; Sensitivity; Vibrations;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
  • Conference_Location
    Mainz
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2013.6665595
  • Filename
    6665595
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=644626