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.articleNumber31109
dc.citation.issueNumber3
dc.citation.journalTitleApplied Physics Letters
dc.citation.volumeNumber111
dc.contributor.authorYin, Xukun
dc.contributor.authorDong, Lei
dc.contributor.authorWu, Hongpeng
dc.contributor.authorMa, Weiguang
dc.contributor.authorZhang, Lei
dc.contributor.authorYin, Wangbao
dc.contributor.authorXiao, Liantuan
dc.contributor.authorJia, Suotang
dc.contributor.authorTittel, Frank K.
dc.date.accessioned2017-08-11T20:05:52Z
dc.date.available2017-08-11T20:05:52Z
dc.date.issued2017
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.
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.
dc.identifier.doihttp://dx.doi.org/10.1063/1.4987008
dc.identifier.urihttps://hdl.handle.net/1911/96647
dc.language.isoeng
dc.publisherAIP Publishing
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.titlePpb-level H2S detection for SF6 decomposition based on a fiber-amplified telecommunication diode laser and a background-gas-induced high-Q photoacoustic cell
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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