Tuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy

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dc.citation.firstpage1401en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage1415en_US
dc.citation.volumeNumber27en_US
dc.contributor.authorPatimisco, Pietroen_US
dc.contributor.authorSampaolo, Angeloen_US
dc.contributor.authorGiglio, Marilenaen_US
dc.contributor.authordello Russo, Stefanoen_US
dc.contributor.authorMackowiak, Verenaen_US
dc.contributor.authorRossmadl, Huberten_US
dc.contributor.authorCable, Alexen_US
dc.contributor.authorTittel, Frank K.en_US
dc.contributor.authorSpagnolo, Vincenzoen_US
dc.date.accessioned2019-12-12T17:25:32Zen_US
dc.date.available2019-12-12T17:25:32Zen_US
dc.date.issued2019en_US
dc.description.abstractWe report on the design, realization, and performance of novel quartz tuning forks (QTFs) optimized for quartz-enhanced photoacoustic spectroscopy (QEPAS). Starting from a QTF geometry designed to provide a fundamental flexural in-plane vibrational mode resonance frequency of ~16 kHz, with a quality factor of 15,000 at atmospheric pressure, two novel geometries have been realized: a QTF with T-shaped prongs and a QTF with prongs having rectangular grooves carved on both surface sides. The QTF with grooves showed the lowest electrical resistance, while the T-shaped prongs QTF provided the best photoacoustic response in terms of signal-to-noise ratio (SNR). When acoustically coupled with a pair of micro-resonator tubes, the T-shaped QTF provides a SNR enhancement of a factor of 60 with respect to the bare QTF, which represents a record value for mid-infrared QEPAS sensing.en_US
dc.identifier.citationPatimisco, Pietro, Sampaolo, Angelo, Giglio, Marilena, et al.. "Tuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy." <i>Optics Express,</i> 27, no. 2 (2019) Optical Society of America: 1401-1415. https://doi.org/10.1364/OE.27.001401.en_US
dc.identifier.digitaloe-27-2-1401en_US
dc.identifier.doihttps://doi.org/10.1364/OE.27.001401en_US
dc.identifier.urihttps://hdl.handle.net/1911/107879en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleTuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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