Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis

Patrik Lundin; Liang Mei; Stefan Andersson-Engels; Sune Svanberg

doi:10.1063/1.4813860

Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis

Patrik Lundin, Liang Mei, Stefan Andersson-Engels, Sune Svanberg

Atomic Physics

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

Abstract

The concentrations of molecular oxygen and nitrogen in a gas mixture were determined by their impact on the shape of a water vapor line in the near infrared region using diode laser absorption spectroscopy. The shape of the water vapor line depends on the composition of other gases in the mixture and can therefore be used to deduce the concentration of partner molecules, e. g., oxygen, in the buffer. The method enables gas concentration measurements in situations when the path length is unknown, measurements of many gases simultaneously, and measurements of gases lacking suitable absorption lines. (C) 2013 AIP Publishing LLC.

Original language	English
Article number	034105
Journal	Applied Physics Letters
Volume	103
Issue number	3
DOIs	https://doi.org/10.1063/1.4813860
Publication status	Published - 2013

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1063/1.4813860

Cite this

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title = "Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis",

abstract = "The concentrations of molecular oxygen and nitrogen in a gas mixture were determined by their impact on the shape of a water vapor line in the near infrared region using diode laser absorption spectroscopy. The shape of the water vapor line depends on the composition of other gases in the mixture and can therefore be used to deduce the concentration of partner molecules, e. g., oxygen, in the buffer. The method enables gas concentration measurements in situations when the path length is unknown, measurements of many gases simultaneously, and measurements of gases lacking suitable absorption lines. (C) 2013 AIP Publishing LLC.",

author = "Patrik Lundin and Liang Mei and Stefan Andersson-Engels and Sune Svanberg",

year = "2013",

doi = "10.1063/1.4813860",

language = "English",

volume = "103",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics (AIP)",

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T1 - Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis

AU - Lundin, Patrik

AU - Mei, Liang

AU - Andersson-Engels, Stefan

AU - Svanberg, Sune

PY - 2013

Y1 - 2013

N2 - The concentrations of molecular oxygen and nitrogen in a gas mixture were determined by their impact on the shape of a water vapor line in the near infrared region using diode laser absorption spectroscopy. The shape of the water vapor line depends on the composition of other gases in the mixture and can therefore be used to deduce the concentration of partner molecules, e. g., oxygen, in the buffer. The method enables gas concentration measurements in situations when the path length is unknown, measurements of many gases simultaneously, and measurements of gases lacking suitable absorption lines. (C) 2013 AIP Publishing LLC.

AB - The concentrations of molecular oxygen and nitrogen in a gas mixture were determined by their impact on the shape of a water vapor line in the near infrared region using diode laser absorption spectroscopy. The shape of the water vapor line depends on the composition of other gases in the mixture and can therefore be used to deduce the concentration of partner molecules, e. g., oxygen, in the buffer. The method enables gas concentration measurements in situations when the path length is unknown, measurements of many gases simultaneously, and measurements of gases lacking suitable absorption lines. (C) 2013 AIP Publishing LLC.

U2 - 10.1063/1.4813860

DO - 10.1063/1.4813860

M3 - Article

SN - 0003-6951

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 3

M1 - 034105

ER -

Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis

Abstract

Subject classification (UKÄ)

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