Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection

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dc.citation.firstpage32103en_US
dc.citation.issueNumber24en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage32110en_US
dc.citation.volumeNumber26en_US
dc.contributor.authorMa, Yufeien_US
dc.contributor.authorHe, Yingen_US
dc.contributor.authorTong, Yaoen_US
dc.contributor.authorYu, Xinen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2019-01-11T15:35:25Zen_US
dc.date.available2019-01-11T15:35:25Zen_US
dc.date.issued2018en_US
dc.description.abstractA gas sensing method based on quartz-tuning-fork enhanced photothermal spectroscopy (QEPTS) is reported in this paper. Unlike usually used thermally sensitive elements, a sharply resonant quartz-tuning-fork with the capability of enhanced mechanical resonance was used to amplify the photothermal signal level. Acetylene (C2H2) detection was used to verify the QEPTS sensor performance. The measured results indicate a minimum detection limit (MDL) of 718 ppb and a normalized noise equivalent absorption coefficient (NNEA) of 7.63 × 10−9 cm−1W/√Hz. This performance demonstrates that QEPTS can be an ultra-high sensitive technique for gas detection and shows superiority when compared to usually used methods of tunable diode laser absorption spectroscopy (TDLAS) and quartz-enhanced photoacoustic spectroscopy (QEPAS). Furthermore, when compared to an optical detector, especially a costly mercury cadmium telluride (MCT) detector with cryogenic cooling used in TDLAS, a quartz-tuning-fork is much cheap and tiny. Besides, compared to the QEPAS technique, QEPTS is a non-contact measurement technique and therefore can be used for standoff and remote trace gas detection.en_US
dc.identifier.citationMa, Yufei, He, Ying, Tong, Yao, et al.. "Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection." <i>Optics Express,</i> 26, no. 24 (2018) Optical Society of America: 32103-32110. https://doi.org/10.1364/OE.26.032103.en_US
dc.identifier.digitaloe-26-24-32103en_US
dc.identifier.doihttps://doi.org/10.1364/OE.26.032103en_US
dc.identifier.urihttps://hdl.handle.net/1911/105077en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rightsPublished under the terms of the OSA Open Access Publishing Agreement.en_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleQuartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detectionen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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