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Analysis of gas dispersed in scattering media

Sjöholm, Mikael LU ; Somesfalean, Gabriel LU ; Alnis, J; Andersson-Engels, Stefan LU and Svanberg, Sune LU (2001) In Optics Letters 26(1). p.16-18
Abstract
Monitoring of free gas embedded in scattering media, such as wood, fruits, and synthetic materials, is demonstrated by use of diode laser spectroscopy combined with sensitive modulation techniques. Gas detection is made possible by the contrast of the narrow absorptive feature of the free-gas molecules with the slow wavelength dependence of the absorption and scattering cross sections in solids and liquids. An absorption sensitivity of 2.5 x 10(-4), corresponding to a 1.25-mm air column, is demonstrated by measurements of dispersed molecular oxygen. These techniques open up new possibilities for characterization and diagnostics, including internal gas pressure and gas-exchange assessment, in organic and synthetic materials. (C) 2001... (More)
Monitoring of free gas embedded in scattering media, such as wood, fruits, and synthetic materials, is demonstrated by use of diode laser spectroscopy combined with sensitive modulation techniques. Gas detection is made possible by the contrast of the narrow absorptive feature of the free-gas molecules with the slow wavelength dependence of the absorption and scattering cross sections in solids and liquids. An absorption sensitivity of 2.5 x 10(-4), corresponding to a 1.25-mm air column, is demonstrated by measurements of dispersed molecular oxygen. These techniques open up new possibilities for characterization and diagnostics, including internal gas pressure and gas-exchange assessment, in organic and synthetic materials. (C) 2001 Optical Society of America. OCIS codes: 300.6360, 290.7050, 290.5820, 170.3660, 020.3690, 160.4890. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Letters
volume
26
issue
1
pages
16 - 18
publisher
Optical Society of America
external identifiers
  • Scopus:0141791147
ISSN
0146-9592
DOI
10.1364/OL.26.000016
language
English
LU publication?
yes
id
b565f52e-c9fe-4d01-82b1-68cbd0f55abe (old id 2259401)
date added to LUP
2012-02-09 22:19:41
date last changed
2016-10-30 04:37:32
@misc{b565f52e-c9fe-4d01-82b1-68cbd0f55abe,
  abstract     = {Monitoring of free gas embedded in scattering media, such as wood, fruits, and synthetic materials, is demonstrated by use of diode laser spectroscopy combined with sensitive modulation techniques. Gas detection is made possible by the contrast of the narrow absorptive feature of the free-gas molecules with the slow wavelength dependence of the absorption and scattering cross sections in solids and liquids. An absorption sensitivity of 2.5 x 10(-4), corresponding to a 1.25-mm air column, is demonstrated by measurements of dispersed molecular oxygen. These techniques open up new possibilities for characterization and diagnostics, including internal gas pressure and gas-exchange assessment, in organic and synthetic materials. (C) 2001 Optical Society of America. OCIS codes: 300.6360, 290.7050, 290.5820, 170.3660, 020.3690, 160.4890.},
  author       = {Sjöholm, Mikael and Somesfalean, Gabriel and Alnis, J and Andersson-Engels, Stefan and Svanberg, Sune},
  issn         = {0146-9592},
  language     = {eng},
  number       = {1},
  pages        = {16--18},
  publisher    = {ARRAY(0x8437270)},
  series       = {Optics Letters},
  title        = {Analysis of gas dispersed in scattering media},
  url          = {http://dx.doi.org/10.1364/OL.26.000016},
  volume       = {26},
  year         = {2001},
}