<div class="csl-bib-body">
<div class="csl-entry">Hayden, J., Giglio, M., Sampaolo, A., Spagnolo, V., & Lendl, B. (2022). Mid-infrared intracavity quartz-enhanced photoacoustic spectroscopy with pptv - Level sensitivity using a T-shaped custom tuning fork. <i>Photoacoustics</i>, <i>25</i>, Article 100330. https://doi.org/10.1016/j.pacs.2022.100330</div>
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dc.identifier.issn
2213-5979
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/144294
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dc.description.abstract
Resonant optical power buildup inside a high finesse cavity is exploited to boost the sensitivity in quartz-enhanced photoacoustic spectroscopy (QEPAS) for CO, N₂O and H₂O detection, operating at a wavelength of 4.59 µm. A quartz tuning fork with T-shaped prongs optimized for QEPAS has been employed. Exploiting the high signal-to-noise ratio attainable with this tuning fork together with an optical power amplification of ~100 enabled by efficient optical feedback locking, limits of detection (3σ, 10 s integration) of 260 ppt and 750 ppt for CO and N₂O have been reached.
en
dc.description.sponsorship
European Commission
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dc.language.iso
en
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dc.publisher
Elsevier
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dc.relation.ispartof
Photoacoustics
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Cavity enhanced spectroscopy
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dc.subject
Costum quartz tuning fork
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dc.subject
QEPAS
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dc.subject
Quantum cascade laser
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dc.subject
Trace gas sensing
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dc.title
Mid-infrared intracavity quartz-enhanced photoacoustic spectroscopy with pptv - Level sensitivity using a T-shaped custom tuning fork
