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dc.contributor.authorMa, Yufei
He, Ying
Tong, Yao
Yu, Xin
Tittel, Frank K.
dc.date.accessioned 2019-01-11T15:35:25Z
dc.date.available 2019-01-11T15:35:25Z
dc.date.issued 2018
dc.identifier.citation Ma, Yufei, He, Ying, Tong, Yao, et al.. "Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection." Optics Express, 26, no. 24 (2018) 32103-32110. https://doi.org/10.1364/OE.26.032103.
dc.identifier.urihttp://hdl.handle.net/1911/105077
dc.description.abstract A 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.
dc.language.iso eng
dc.rights Published under the terms of the OSA Open Access Publishing Agreement.
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OA
dc.title Quartz-tuning-fork enhanced photothermal spectroscopy for ultra-high sensitive trace gas detection
dc.type Journal article
dc.citation.journalTitle Optics Express
dc.citation.volumeNumber 26
dc.citation.issueNumber 24
dc.identifier.digital oe-26-24-32103
dc.contributor.publisher Optical Society of America
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1364/OE.26.032103
dc.type.publication publisher version
dc.citation.firstpage 32103
dc.citation.lastpage 32110


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