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

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dc.citation.firstpage34258
dc.citation.issueNumber21
dc.citation.journalTitleOptics Express
dc.citation.lastpage34268
dc.citation.volumeNumber29
dc.contributor.authorYin, Xukun
dc.contributor.authorYin, Xukun
dc.contributor.authorGao, Miao
dc.contributor.authorMiao, Ruiqi
dc.contributor.authorZhang, Le
dc.contributor.authorZhang, Xueshi
dc.contributor.authorLiu, Lixian
dc.contributor.authorShao, Xiaopeng
dc.contributor.authorShao, Xiaopeng
dc.contributor.authorTittel, Frank K.
dc.date.accessioned2021-10-21T17:53:25Z
dc.date.available2021-10-21T17:53:25Z
dc.date.issued2021
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.
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.
dc.identifier.digitaloe-29-21-34258
dc.identifier.doihttps://doi.org/10.1364/OE.441698
dc.identifier.urihttps://hdl.handle.net/1911/111592
dc.language.isoeng
dc.publisherOptical Society of America
dc.rightsPublished under the terms of the OSA Open Access Publishing Agreement
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OA
dc.titleNear-infrared laser photoacoustic gas sensor for simultaneous detection of CO and H2S
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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