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dc.contributor.authorYe, Weilin
Li, Chunguang
Zheng, Chuantao
Sanchez, Nancy P.
Gluszek, Aleksander K.
Hudzikowski, Arkadiusz J.
Dong, Lei
Griffin, Robert J.
Tittel, Frank K.
dc.date.accessioned 2016-09-30T20:52:22Z
dc.date.available 2016-09-30T20:52:22Z
dc.date.issued 2016
dc.identifier.citation Ye, Weilin, Li, Chunguang, Zheng, Chuantao, et al.. "Mid-infrared dual-gas sensor for simultaneous detection of methane and ethane using a single continuous-wave interband cascade laser." Optics Express, 24, no. 15 (2016) The Optical Society: 16973-16985. http://dx.doi.org/10.1364/OE.24.016973.
dc.identifier.urihttps://hdl.handle.net/1911/91631
dc.description.abstract A continuous-wave (CW) interband cascade laser (ICL) based mid-infrared sensor system was demonstrated for simultaneous detection of atmospheric methane (CH4) and ethane (C2H6). A 3.337 µm CW ICL with an emitting wavenumber range of 2996.0−3001.5 cm−1 was used to simultaneously target two absorption lines, C2H6 at 2996.88 cm−1 and CH4 at 2999.06 cm−1, respectively. The sensor performance was first evaluated for single-gas detection by only targeting the absorption line of one gas species. Allan deviations of 11.2 parts per billion in volume (ppbv) for CH4 and 1.86 ppbv for C2H6 with an averaging time of 3.4 s were achieved for the detection of these two gases. Dual-gas detection was realized by using a long-term scan signal to target both CH4 and C2H6 lines. The Allan deviations increased slightly to 17.4 ppbv for CH4 and 2.4 ppbv for C2H6 with an averaging time of 4.6 s due to laser temperature and power drift caused by long-term wavelength scanning. Measurements for both indoor and outdoor concentration changes of CH4 and C2H6 were conducted. The reported single ICL based dual-gas sensor system has the advantages of reduced size and cost compared to two separate sensor systems.
dc.language.iso eng
dc.publisher The Optical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Mid-infrared dual-gas sensor for simultaneous detection of methane and ethane using a single continuous-wave interband cascade laser
dc.type Journal article
dc.citation.journalTitle Optics Express
dc.citation.volumeNumber 24
dc.citation.issueNumber 15
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1364/OE.24.016973
dc.type.publication publisher version
dc.citation.firstpage 16973
dc.citation.lastpage 16985


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