Ppb-level H2S detection for SF6 decomposition based on a fiber-amplified telecommunication diode laser and a background-gas-induced high-Q photoacoustic cell

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dc.citation.articleNumber31109en_US
dc.citation.issueNumber3en_US
dc.citation.journalTitleApplied Physics Lettersen_US
dc.citation.volumeNumber111en_US
dc.contributor.authorYin, Xukunen_US
dc.contributor.authorDong, Leien_US
dc.contributor.authorWu, Hongpengen_US
dc.contributor.authorMa, Weiguangen_US
dc.contributor.authorZhang, Leien_US
dc.contributor.authorYin, Wangbaoen_US
dc.contributor.authorXiao, Liantuanen_US
dc.contributor.authorJia, Suotangen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2017-08-11T20:05:52Zen_US
dc.date.available2017-08-11T20:05:52Zen_US
dc.date.issued2017en_US
dc.description.abstractA ppb-level hydrogen sulfide (H2S) gas sensor for sulfur hexafluoride (SF6) decomposition analysis was developed by means of a background-gas-induced high-Q differential photoacoustic cell (PAC) and a fiber-amplified telecommunication diode laser. The watt-level excitation laser power compensates the sensitivity loss as a result of using a low cost, near-IR laser source. The differential design with a large cylindrical resonator diameter allows the PAC to accommodate the high power beam and maintain a low noise level output. The theory of background-gas-induced high-Q PAC is provided and was verified experimentally. A H2S detection limit (1σ) of 109 ppb in a SF6 buffer gas was achieved for an averaging time of 1 s, which corresponds to a normalized noise equivalent absorption coefficient of 2.9 × 10−9 cm−1 W Hz−1/2.en_US
dc.identifier.citationYin, Xukun, Dong, Lei, Wu, Hongpeng, et al.. "Ppb-level H2S detection for SF6 decomposition based on a fiber-amplified telecommunication diode laser and a background-gas-induced high-Q photoacoustic cell." <i>Applied Physics Letters,</i> 111, no. 3 (2017) AIP Publishing: http://dx.doi.org/10.1063/1.4987008.en_US
dc.identifier.doihttp://dx.doi.org/10.1063/1.4987008en_US
dc.identifier.urihttps://hdl.handle.net/1911/96647en_US
dc.language.isoengen_US
dc.publisherAIP Publishingen_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.titlePpb-level H2S detection for SF6 decomposition based on a fiber-amplified telecommunication diode laser and a background-gas-induced high-Q photoacoustic cellen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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