• DocumentCode
    2637442
  • Title

    Novel NO2 detection based on cavity ringdown spectroscopy using a power build-up cavity

  • Author

    Sato, Jun-ichi ; Yamauchi, Ken ; Nemoto, Kana ; Yamaguchi, Shigeru ; Endo, Masamori ; Nanri, Kenzo ; Fujioka, Tomoo

  • Author_Institution
    Dept. of Phys., Tokai Univ., Kanagawa, Japan
  • fYear
    2005
  • fDate
    22-28 Oct. 2005
  • Firstpage
    899
  • Lastpage
    900
  • Abstract
    This paper reports a laser diode pumped power build-up cavity (PBC) to apply for cavity ringdown spectroscopy (CRDS). The PBC is a compact-high finesse external cavity laser diode, which can obtain resonant enhancement without active cavity length control. PBC is applied generally undesired feed backed beam to cavity resonant enhancement. More than 2.30 μs of ringdown time was achieved with a very small gas sampling volume about 2.5ml. Sensitivity of 3.62 × 10-7 cm-1 corresponding to NO2 detection limit of less than 1.7 ppm was achieved.
  • Keywords
    gas sensors; laser cavity resonators; measurement by laser beam; nitrogen compounds; optical pumping; semiconductor lasers; spectrochemical analysis; spectroscopic light sources; NO2; NO2 detection; cavity resonant enhancement; cavity ringdown spectroscopy; external cavity laser diode; power build-up cavity; Absorption; Diode lasers; Laser modes; Light sources; Mirrors; Optical feedback; Quantum cascade lasers; Reflectivity; Ring lasers; Time measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics Society, 2005. LEOS 2005. The 18th Annual Meeting of the IEEE
  • Print_ISBN
    0-7803-9217-5
  • Type

    conf

  • DOI
    10.1109/LEOS.2005.1548292
  • Filename
    1548292
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2637442