Concentration measurement of gas embedded in scattering media by employing absorption and time-resolved laser spectroscopy
(2002) In Applied Optics 41(18). p.3538-3544- Abstract
- Diode-laser-based absorption spectroscopy for the evaluation of embedded gas concentrations in porous materials is demonstrated in measurements of molecular oxygen dispersed throughout scattering polystyrene foam, used here as a generic test material. The mean path length of light scattered in the material is determined with the temporal characteristics of the radiation transmitted through the sample. This combined with sensitive gas-absorption measurements employing wavelength-modulation spectroscopy yields an oxygen concentration in polystyrene foam of 20.4% corresponding to a foam porosity of 98%, which is consistent with manufacturing specifications. This feasibility study opens many possibilities for quantitative measurements by using... (More)
- Diode-laser-based absorption spectroscopy for the evaluation of embedded gas concentrations in porous materials is demonstrated in measurements of molecular oxygen dispersed throughout scattering polystyrene foam, used here as a generic test material. The mean path length of light scattered in the material is determined with the temporal characteristics of the radiation transmitted through the sample. This combined with sensitive gas-absorption measurements employing wavelength-modulation spectroscopy yields an oxygen concentration in polystyrene foam of 20.4% corresponding to a foam porosity of 98%, which is consistent with manufacturing specifications. This feasibility study opens many possibilities for quantitative measurements by using the method of gas-in-scattering-media absorption spectroscopy. (C) 2002 Optical Society of America. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2259406
- author
- Somesfalean, Gabriel LU ; Sjöholm, Mikael LU ; Alnis, J ; af Klinteberg, C ; Andersson-Engels, Stefan LU and Svanberg, Sune LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 41
- issue
- 18
- pages
- 3538 - 3544
- publisher
- Optical Society of America
- external identifiers
-
- scopus:0037141918
- ISSN
- 2155-3165
- DOI
- 10.1364/AO.41.003538
- language
- English
- LU publication?
- yes
- id
- 1d905526-8bda-4f25-9c1f-d4e79e0a7542 (old id 2259406)
- date added to LUP
- 2016-04-04 08:25:28
- date last changed
- 2022-01-29 03:26:45
@article{1d905526-8bda-4f25-9c1f-d4e79e0a7542,
abstract = {{Diode-laser-based absorption spectroscopy for the evaluation of embedded gas concentrations in porous materials is demonstrated in measurements of molecular oxygen dispersed throughout scattering polystyrene foam, used here as a generic test material. The mean path length of light scattered in the material is determined with the temporal characteristics of the radiation transmitted through the sample. This combined with sensitive gas-absorption measurements employing wavelength-modulation spectroscopy yields an oxygen concentration in polystyrene foam of 20.4% corresponding to a foam porosity of 98%, which is consistent with manufacturing specifications. This feasibility study opens many possibilities for quantitative measurements by using the method of gas-in-scattering-media absorption spectroscopy. (C) 2002 Optical Society of America.}},
author = {{Somesfalean, Gabriel and Sjöholm, Mikael and Alnis, J and af Klinteberg, C and Andersson-Engels, Stefan and Svanberg, Sune}},
issn = {{2155-3165}},
language = {{eng}},
number = {{18}},
pages = {{3538--3544}},
publisher = {{Optical Society of America}},
series = {{Applied Optics}},
title = {{Concentration measurement of gas embedded in scattering media by employing absorption and time-resolved laser spectroscopy}},
url = {{https://lup.lub.lu.se/search/files/5178825/2297585.pdf}},
doi = {{10.1364/AO.41.003538}},
volume = {{41}},
year = {{2002}},
}