http://www.cnr.it/ontology/cnr/individuo/prodotto/ID292679
Widely-tunable mid-infrared fiber-coupled quartz-enhanced photoacoustic sensor for environmental monitoring. (Articolo in rivista)
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- Widely-tunable mid-infrared fiber-coupled quartz-enhanced photoacoustic sensor for environmental monitoring. (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OE.22.028222 (literal)
- Alternative label
Siciliani de Cumis, M; Viciani, S; Borri, S; Patimisco, P; Sampaolo, A; Scamarcio, G; De Natale, P; D'Amato, F; Spagnolo, V (2014)
Widely-tunable mid-infrared fiber-coupled quartz-enhanced photoacoustic sensor for environmental monitoring.
in Optics express
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Siciliani de Cumis, M; Viciani, S; Borri, S; Patimisco, P; Sampaolo, A; Scamarcio, G; De Natale, P; D'Amato, F; Spagnolo, V (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84913591087&partnerID=q2rCbXpz (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR - Istituto Nazionale di Ottica (INO), European Laboratory for Nonlinear Spectroscopy (LENS), Via Carrara 1, Sesto Fiorentino FI, 50019, Italy; Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Politecnico di Bari and CNR - Istituto di Fotonica e Nanotecnologie (IFN) UOS Bari, via Amendola 173, Bari BA, 70126, Italy (literal)
- Titolo
- Widely-tunable mid-infrared fiber-coupled quartz-enhanced photoacoustic sensor for environmental monitoring. (literal)
- Abstract
- A compact widely-tunable fiber-coupled sensor for trace gas detection of hydrogen sulfide (H2S) in the mid infrared is reported. The sensor is based on an external-cavity quantum cascade laser (EC-QCL) tunable between 7.6 and 8.3 mum wavelengths coupled into a single-mode hollow-core waveguide. Quartz-enhanced photoacoustic spectroscopy has been selected as detecting technique. The fiber coupling system converts the astigmatic beam exiting the laser into a TEM00 mode. During a full laser scan, we observed no misalignment between the optical beam and the tuning fork, thus making our system applicable for multi-gas or broad absorber detections. The sensor has been tested on N2:H2S gas mixtures. The minimum detectable H2S concentration is 450 ppb in ~3 s integration time, which is the best value till now reported in literature for H2S optical sensors. (literal)
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