Near-infrared laser photoacoustic gas sensor for simultaneous detection of CO and H2S

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dc.citation.firstpage34258en_US
dc.citation.issueNumber21en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage34268en_US
dc.citation.volumeNumber29en_US
dc.contributor.authorYin, Xukunen_US
dc.contributor.authorYin, Xukunen_US
dc.contributor.authorGao, Miaoen_US
dc.contributor.authorMiao, Ruiqien_US
dc.contributor.authorZhang, Leen_US
dc.contributor.authorZhang, Xueshien_US
dc.contributor.authorLiu, Lixianen_US
dc.contributor.authorShao, Xiaopengen_US
dc.contributor.authorShao, Xiaopengen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2021-10-21T17:53:25Zen_US
dc.date.available2021-10-21T17:53:25Zen_US
dc.date.issued2021en_US
dc.description.abstractA ppb-level H2S and CO photoacoustic spectroscopy (PAS) gas sensor was developed by using a two-stage commercial optical fiber amplifier with a full output power of 10 W. Two near-infrared diode lasers with the central wavenumbers of 6320.6 cm−1 and 6377.4 cm−1 were employed as the excitation laser source. A time-division multiplexing method was used to simultaneously detect CO and H2S with an optical switch. A dual-resonator structural photoacoustic cell (PAC) was theoretically simulated and designed with a finite element analysis. A µV level background noise was achieved with the differential and symmetrical PAC. The performance of the multi-component sensor was evaluated after the optimization of frequency, pressure and modulation depth. The minimum detection limits of 31.7 ppb and 342.7 ppb were obtained for H2S and CO at atmospheric pressure.en_US
dc.identifier.citationYin, Xukun, Yin, Xukun, Gao, Miao, et al.. "Near-infrared laser photoacoustic gas sensor for simultaneous detection of CO and H2S." <i>Optics Express,</i> 29, no. 21 (2021) Optical Society of America: 34258-34268. https://doi.org/10.1364/OE.441698.en_US
dc.identifier.digitaloe-29-21-34258en_US
dc.identifier.doihttps://doi.org/10.1364/OE.441698en_US
dc.identifier.urihttps://hdl.handle.net/1911/111592en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rightsPublished under the terms of the OSA Open Access Publishing Agreementen_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleNear-infrared laser photoacoustic gas sensor for simultaneous detection of CO and H2Sen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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