Tuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy

dc.citation.firstpage1401
dc.citation.issueNumber2
dc.citation.journalTitleOptics Express
dc.citation.lastpage1415
dc.citation.volumeNumber27
dc.contributor.authorPatimisco, Pietro
dc.contributor.authorSampaolo, Angelo
dc.contributor.authorGiglio, Marilena
dc.contributor.authordello Russo, Stefano
dc.contributor.authorMackowiak, Verena
dc.contributor.authorRossmadl, Hubert
dc.contributor.authorCable, Alex
dc.contributor.authorTittel, Frank K.
dc.contributor.authorSpagnolo, Vincenzo
dc.date.accessioned2019-12-12T17:25:32Z
dc.date.available2019-12-12T17:25:32Z
dc.date.issued2019
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.
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.
dc.identifier.digitaloe-27-2-1401
dc.identifier.doihttps://doi.org/10.1364/OE.27.001401
dc.identifier.urihttps://hdl.handle.net/1911/107879
dc.language.isoeng
dc.publisherOptical Society of America
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OA
dc.titleTuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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