Pulsed quantum-cascade laser-based sensor for trace-gas detection of carbonyl sulfide

Gerard Wysocki; Matt McCurdy; Stephen So; Damien Weidmann; Chad Roller; Robert F. Curl; Frank K. Tittel

doi:10.1364/AO.43.006040

Pulsed quantum-cascade laser-based sensor for trace-gas detection of carbonyl sulfide

Gerard Wysocki, Matt McCurdy, Stephen So, Damien Weidmann, Chad Roller, Robert F. Curl, Frank K. Tittel

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

Simultaneous exhaled carbonyl sulfide (OCS) and carbon dioxide concentration measurements in human breath are demonstrated with a compact pulsed quantum-cascade laser-based gas sensor. We achieved a noise-equivalent sensitivity (1σ) of 1.2 parts per billion by measuring a well-isolated OCS P(11) absorption line in the v₃ band at 2057.6 cm^-1 using an astigmatic Harriott cell of 36-m optical path length and 0.4-s acquisition time.

Original language	English (US)
Pages (from-to)	6040-6046
Number of pages	7
Journal	Applied Optics
Volume	43
Issue number	32
DOIs	https://doi.org/10.1364/AO.43.006040
State	Published - Nov 10 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.43.006040

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abstract = "Simultaneous exhaled carbonyl sulfide (OCS) and carbon dioxide concentration measurements in human breath are demonstrated with a compact pulsed quantum-cascade laser-based gas sensor. We achieved a noise-equivalent sensitivity (1σ) of 1.2 parts per billion by measuring a well-isolated OCS P(11) absorption line in the v3 band at 2057.6 cm-1 using an astigmatic Harriott cell of 36-m optical path length and 0.4-s acquisition time.",

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AU - Wysocki, Gerard

AU - McCurdy, Matt

AU - So, Stephen

AU - Weidmann, Damien

AU - Roller, Chad

AU - Curl, Robert F.

AU - Tittel, Frank K.

PY - 2004/11/10

Y1 - 2004/11/10

N2 - Simultaneous exhaled carbonyl sulfide (OCS) and carbon dioxide concentration measurements in human breath are demonstrated with a compact pulsed quantum-cascade laser-based gas sensor. We achieved a noise-equivalent sensitivity (1σ) of 1.2 parts per billion by measuring a well-isolated OCS P(11) absorption line in the v3 band at 2057.6 cm-1 using an astigmatic Harriott cell of 36-m optical path length and 0.4-s acquisition time.

AB - Simultaneous exhaled carbonyl sulfide (OCS) and carbon dioxide concentration measurements in human breath are demonstrated with a compact pulsed quantum-cascade laser-based gas sensor. We achieved a noise-equivalent sensitivity (1σ) of 1.2 parts per billion by measuring a well-isolated OCS P(11) absorption line in the v3 band at 2057.6 cm-1 using an astigmatic Harriott cell of 36-m optical path length and 0.4-s acquisition time.

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Pulsed quantum-cascade laser-based sensor for trace-gas detection of carbonyl sulfide

Abstract

All Science Journal Classification (ASJC) codes

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