Quartz enhanced photoacoustic H2S gas sensor based on a fiber-amplifier source and a custom tuning fork with large prong spacing

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dc.citation.articleNumber111104
dc.citation.issueNumber11en_US
dc.citation.journalTitleApplied Physics Lettersen_US
dc.citation.volumeNumber107en_US
dc.contributor.authorWu, Hongpengen_US
dc.contributor.authorSampaolo, Angeloen_US
dc.contributor.authorDong, Leien_US
dc.contributor.authorPatimisco, Pietroen_US
dc.contributor.authorLiu, Xiaolien_US
dc.contributor.authorZheng, Huadanen_US
dc.contributor.authorYin, Xukunen_US
dc.contributor.authorMa, Weiguangen_US
dc.contributor.authorZhang, Leien_US
dc.contributor.authorYin, Wangbaoen_US
dc.contributor.authorSpagnolo, Vincenzoen_US
dc.contributor.authorJia, Suotangen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2017-05-12T15:04:32Z
dc.date.available2017-05-12T15:04:32Z
dc.date.issued2015en_US
dc.description.abstractA quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplified laser source and a custom quartz tuning fork (QTF) with its two prongs spaced ∼800 μm apart, is reported. The sensor employs an acoustic micro-resonator (AmR) which is assembled in an “on-beam” QEPAS configuration. Both length and vertical position of the AmR are optimized in terms of signal-to-noise ratio, significantly improving the QEPAS detection sensitivity by a factor of ∼40, compared to the case of a sensor using a bare custom QTF. The fiber-amplifier-enhanced QEPAS sensor is applied to H2S trace gas detection, reaching a sensitivity of ∼890 ppb at 1 s integration time, similar to those obtained with a power-enhanced QEPAS sensor equipped with a standard QTF, but with the advantages of easy optical alignment, simple installation, and long-term stability.en_US
dc.identifier.citationWu, Hongpeng, Sampaolo, Angelo, Dong, Lei, et al.. "Quartz enhanced photoacoustic H2S gas sensor based on a fiber-amplifier source and a custom tuning fork with large prong spacing." <i>Applied Physics Letters,</i> 107, no. 11 (2015) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4930995.
dc.identifier.doihttp://dx.doi.org/10.1063/1.4930995en_US
dc.identifier.urihttps://hdl.handle.net/1911/94233
dc.language.isoengen_US
dc.publisherAIP Publishing LLC
dc.rightsArticle 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.titleQuartz enhanced photoacoustic H2S gas sensor based on a fiber-amplifier source and a custom tuning fork with large prong spacingen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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