Optical analytical technique for carbonaceous particles using laser-induced electro-avalanche fluorescence and laser-induced incandescence

Satoshi Ikezawa, Muneaki Wakamatsu, Toshitsugu Ueda

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    This report describes an optical sensing system for fine particle detection using a combination of two techniques: laser-induced breakdown spectroscopy (LIBS) and laserinduced incandescence (LII). We have improved laser measurement systems applied for small-particle analysis. We have determined elemental composition and density of particles using LIBS and have been able to measure particle size using LII. Controlling the power density of the light source of the present system allowed switching from LIBS to LII. LII temporal analysis was conducted using a streak camera, which was also used for LIBS analysis. The LII technique allows in situ measurement of the average primary particle size of nanoscale soot particles.

    Original languageEnglish
    Pages (from-to)57-77
    Number of pages21
    JournalSensors and Materials
    Volume25
    Issue number1
    Publication statusPublished - 2013

    Fingerprint

    incandescence
    Laser induced breakdown spectroscopy
    avalanches
    laser-induced breakdown spectroscopy
    Fluorescence
    fluorescence
    Lasers
    lasers
    Particle size
    Soot
    Streak cameras
    Switching systems
    Light sources
    streak cameras
    soot
    in situ measurement
    radiant flux density
    light sources
    Chemical analysis

    Keywords

    • Laser
    • LIBS
    • LII
    • Nanoparticles
    • SPM

    ASJC Scopus subject areas

    • Instrumentation
    • Materials Science(all)

    Cite this

    Optical analytical technique for carbonaceous particles using laser-induced electro-avalanche fluorescence and laser-induced incandescence. / Ikezawa, Satoshi; Wakamatsu, Muneaki; Ueda, Toshitsugu.

    In: Sensors and Materials, Vol. 25, No. 1, 2013, p. 57-77.

    Research output: Contribution to journalArticle

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