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

dc.citation.articleNumber111104en_US
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.accessioned2017-05-12T15:04:32Zen_US
dc.date.available2017-05-12T15:04:32Zen_US
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.en_US
dc.identifier.doihttp://dx.doi.org/10.1063/1.4930995en_US
dc.identifier.urihttps://hdl.handle.net/1911/94233en_US
dc.language.isoengen_US
dc.publisherAIP Publishing LLCen_US
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.en_US
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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