Overtone resonance enhanced single-tube on-beam quartz enhanced photoacoustic spectrophone

Simple item page
dc.citation.articleNumber111103en_US
dc.citation.issueNumber11en_US
dc.citation.journalTitleApplied Physics Lettersen_US
dc.citation.volumeNumber109en_US
dc.contributor.authorZheng, Huadanen_US
dc.contributor.authorDong, Leien_US
dc.contributor.authorSampaolo, Angeloen_US
dc.contributor.authorPatimisco, Pietroen_US
dc.contributor.authorMa, Weiguangen_US
dc.contributor.authorZhang, Leien_US
dc.contributor.authorYin, Wangbaoen_US
dc.contributor.authorXiao, Liantuanen_US
dc.contributor.authorSpagnolo, Vincenzoen_US
dc.contributor.authorJia, Suotangen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2017-05-19T19:09:39Zen_US
dc.date.available2017-05-19T19:09:39Zen_US
dc.date.issued2016en_US
dc.description.abstractA single-tube on-beam quartz enhanced photoacoustic spectroscopy (SO-QEPAS) spectrophone, which employs a custom-made quartz tuning fork (QTF) having a prong spacing of 700 μm and operating at the 1st overtone flexural mode, is reported. The design of QTF prong geometry allows the bare QTF to possess twice higher Q-factor values for the 1st overtone resonance mode falling at ∼17.7 kHz than in the fundamental resonance mode at ∼2.8 kHz, resulting in an 8 times higher QEPAS signal amplitude when operating in the 1st overtone resonance mode. Both the vertical position and length of the single-tube acoustic micro-resonator (AmR) were optimized to attain optimal spectrophone performance. Benefiting from the high overtone resonance frequency and the quasi 1st harmonic acoustic standing waves generated in the SO-QEPAS configuration, the AmR length is reduced to 14.5 mm. This allows the realization of compact spectrophone and facilitates the laser beam alignment through the QTF + AmR system. The signal enhancement in the overtone resonance mode and the high acoustic coupling efficiency between the AmR and QTF in the SO-QEPAS configuration yields an overall sensitivity enhancement factor of ∼380 with respect to the bare custom QTF operating in the fundamental resonance mode.en_US
dc.identifier.citationZheng, Huadan, Dong, Lei, Sampaolo, Angelo, et al.. "Overtone resonance enhanced single-tube on-beam quartz enhanced photoacoustic spectrophone." <i>Applied Physics Letters,</i> 109, no. 11 (2016) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4962810.en_US
dc.identifier.doihttp://dx.doi.org/10.1063/1.4962810en_US
dc.identifier.urihttps://hdl.handle.net/1911/94288en_US
dc.language.isoengen_US
dc.publisherAIP Publishing LLCen_US
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.en_US
dc.titleOvertone resonance enhanced single-tube on-beam quartz enhanced photoacoustic spectrophoneen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Overtone-resonance.pdf
Size:
587.66 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Faculty Publications
ECE Publications