Quartz-enhanced photoacoustic spectroscopy exploiting a fast and wideband electro-mechanical light modulator

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dc.citation.firstpage27966
dc.citation.issueNumber19
dc.citation.journalTitleOptics Express
dc.citation.lastpage27973
dc.citation.volumeNumber28
dc.contributor.authorZheng, Huadan
dc.contributor.authorZheng, Huadan
dc.contributor.authorLiu, Yihua
dc.contributor.authorLin, Haoyang
dc.contributor.authorKan, Ruifeng
dc.contributor.authorKan, Ruifeng
dc.contributor.authorDong, Lei
dc.contributor.authorDong, Lei
dc.contributor.authorZhu, Wenguo
dc.contributor.authorFang, Junbin
dc.contributor.authorYu, Jianhui
dc.contributor.authorYu, Jianhui
dc.contributor.authorTittel, Frank K.
dc.contributor.authorChen, Zhe
dc.date.accessioned2020-10-21T18:16:22Z
dc.date.available2020-10-21T18:16:22Z
dc.date.issued2020
dc.description.abstractA quartz-enhanced photoacoustic spectroscopy (QEPAS) gas sensor exploiting a fast and wideband electro-mechanical light modulator was developed. The modulator was designed based on the electro-mechanical effect of a commercial quartz tuning fork (QTF). The laser beam was directed on the edge surface of the QTF prongs. The configuration of the laser beam and the QTF was optimized in detail in order to achieve a modulation efficiency of ∼100%. The L-band single wavelength laser diode and a C-band tunable continuous wave laser were used to verify the performance of the developed QTF modulator, respectively, realizing a QEPAS sensor based on amplitude modulation (AM). As proof of concept, the AM-based QEPAS sensor demonstrated a detection limit of 45 ppm for H2O and 50 ppm for CO2 with a 1 s integration time respectively.
dc.identifier.citationZheng, Huadan, Zheng, Huadan, Liu, Yihua, et al.. "Quartz-enhanced photoacoustic spectroscopy exploiting a fast and wideband electro-mechanical light modulator." <i>Optics Express,</i> 28, no. 19 (2020) Optical Society of America: 27966-27973. https://doi.org/10.1364/OE.400100.
dc.identifier.doihttps://doi.org/10.1364/OE.400100
dc.identifier.urihttps://hdl.handle.net/1911/109443
dc.language.isoeng
dc.publisherOptical Society of America
dc.rights© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm
dc.subject.keywordElectrooptical modulators
dc.subject.keywordLaser beams
dc.subject.keywordLED sources
dc.subject.keywordSolid state lasers
dc.subject.keywordStray light
dc.subject.keywordTunable diode lasers
dc.titleQuartz-enhanced photoacoustic spectroscopy exploiting a fast and wideband electro-mechanical light modulator
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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