Ppbv-Level Ethane Detection Using Quartz-Enhanced Photoacoustic Spectroscopy with a Continuous-Wave, Room Temperature Interband Cascade Laser

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dc.citation.articleNumber723en_US
dc.citation.issueNumber3en_US
dc.citation.journalTitleSensorsen_US
dc.citation.volumeNumber18en_US
dc.contributor.authorLi, Chunguangen_US
dc.contributor.authorDong, Leien_US
dc.contributor.authorZheng, Chuantaoen_US
dc.contributor.authorLin, Junen_US
dc.contributor.authorWang, Yidingen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2018-07-11T20:57:33Zen_US
dc.date.available2018-07-11T20:57:33Zen_US
dc.date.issued2018en_US
dc.description.abstractA ppbv-level quartz-enhanced photoacoustic spectroscopy (QEPAS)-based ethane (C2H6) sensor was demonstrated by using a 3.3 μm continuous-wave (CW), distributed feedback (DFB) interband cascade laser (ICL). The ICL was employed for targeting a strong C2H6 absorption line located at 2996.88 cm−1 in its fundamental absorption band. Wavelength modulation spectroscopy (WMS) combined with the second harmonic (2f) detection technique was utilized to increase the signal-to-noise ratio (SNR) and simplify data acquisition and processing. Gas pressure and laser frequency modulation depth were optimized to be 100 Torr and 0.106 cm−1, respectively, for maximizing the 2f signal amplitude. Performance of the QEPAS sensor was evaluated using specially prepared C2H6 samples. A detection limit of 11 parts per billion in volume (ppbv) was obtained with a 1-s integration time based on an Allan-Werle variance analysis, and the detection precision can be further improved to ~1.5 ppbv by increasing the integration time up to 230 s.en_US
dc.identifier.citationLi, Chunguang, Dong, Lei, Zheng, Chuantao, et al.. "Ppbv-Level Ethane Detection Using Quartz-Enhanced Photoacoustic Spectroscopy with a Continuous-Wave, Room Temperature Interband Cascade Laser." <i>Sensors,</i> 18, no. 3 (2018) MDPI: https://doi.org/10.3390/s18030723.en_US
dc.identifier.doihttps://doi.org/10.3390/s18030723en_US
dc.identifier.urihttps://hdl.handle.net/1911/102410en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subject.keywordlaser sensorsen_US
dc.subject.keywordinfrared spectroscopyen_US
dc.subject.keywordsemiconductor quantum cascade lasersen_US
dc.titlePpbv-Level Ethane Detection Using Quartz-Enhanced Photoacoustic Spectroscopy with a Continuous-Wave, Room Temperature Interband Cascade Laseren_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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