Resonant photoacoustic detection of trac
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Jingsong Li; Xiaoming Gao; Li Fang; Weijun Zhang; Hyungki Cha
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Article
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2007
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Elsevier Science
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English
β 305 KB
A resonant photoacoustic detection system based on a low-power distributed feedback diode laser is developed. This sensor has been applied to the detection of acetylene (C 2 H 2 ) using a specifically designed photoacoustic cell operating on its second longitudinal mode. The minimum detectable limit