• Title/Summary/Keyword: Air Pollution Monitoring

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Tunable Diode Laser Absorption Spectroscopy for Environmental Monitoring (파장가변 다이오드 레이저 흡수 분광학을 사용한 대기환경분석)

  • Ju Sang-U;Kim Seong-Geun
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
    • /
    • pp.247-248
    • /
    • 2003

  • Tunable diode laser absorption spectroscopy (TDLAS) has been widely used in environmental monitoring of gaseous species in the past decade. TDLAS is a direct measurement technique for pollutants such as NOx without any interference from other species. Because of its superior spectral purity (～0.001 ­$cm^{-1}$), absorption linewidths with resolvable rotational structure can be studied in the mid infrared region where strong fundamental vibrational transitions of molecules appear. (omitted)

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