Advanced

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

Lundin, Patrik LU ; Mei, Liang LU ; Andersson-Engels, Stefan LU and Svanberg, Sune LU (2013) In Applied Physics Letters 103(3).
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
103
issue
3
publisher
AIP Publishing LLC
external identifiers
  • wos:000322146300138
  • scopus:84881521708
ISSN
0003-6951
DOI
10.1063/1.4813860
language
English
LU publication?
yes
id
aa903da5-8250-4a54-8056-e80795b49604 (old id 4043067)
date added to LUP
2013-10-03 14:50:25
date last changed
2019-03-08 01:01:32
@article{aa903da5-8250-4a54-8056-e80795b49604,
  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.},
  articleno    = {034105},
  author       = {Lundin, Patrik and Mei, Liang and Andersson-Engels, Stefan and Svanberg, Sune},
  issn         = {0003-6951},
  language     = {eng},
  number       = {3},
  publisher    = {AIP Publishing LLC},
  series       = {Applied Physics Letters},
  title        = {Laser spectroscopic gas concentration measurements in situations with unknown optical path length enabled by absorption line shape analysis},
  url          = {http://dx.doi.org/10.1063/1.4813860},
  volume       = {103},
  year         = {2013},
}