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dc.contributor.authorZheng, Huadan
Zheng, Huadan
Liu, Yihua
Lin, Haoyang
Kan, Ruifeng
Kan, Ruifeng
Dong, Lei
Dong, Lei
Zhu, Wenguo
Fang, Junbin
Yu, Jianhui
Yu, Jianhui
Tittel, Frank K.
Chen, Zhe
dc.date.accessioned 2020-10-21T18:16:22Z
dc.date.available 2020-10-21T18:16:22Z
dc.date.issued 2020
dc.identifier.citation Zheng, Huadan, Zheng, Huadan, Liu, Yihua, et al.. "Quartz-enhanced photoacoustic spectroscopy exploiting a fast and wideband electro-mechanical light modulator." Optics Express, 28, no. 19 (2020) Optical Society of America: 27966-27973. https://doi.org/10.1364/OE.400100.
dc.identifier.urihttps://hdl.handle.net/1911/109443
dc.description.abstract A 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.language.iso eng
dc.publisher Optical 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.title Quartz-enhanced photoacoustic spectroscopy exploiting a fast and wideband electro-mechanical light modulator
dc.type Journal article
dc.citation.journalTitle Optics Express
dc.subject.keywordElectrooptical modulators
Laser beams
LED sources
Solid state lasers
Stray light
Tunable diode lasers
dc.citation.volumeNumber 28
dc.citation.issueNumber 19
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1364/OE.400100
dc.type.publication publisher version
dc.citation.firstpage 27966
dc.citation.lastpage 27973


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