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Combined optical porosimetry and gas absorption spectroscopy in gas-filled porous media using diode-laser-based frequency domain photon migration

Mei, Liang LU ; Svanberg, Sune LU and Somesfalean, Gabriel LU (2012) In Optics Express 20(15). p.16942-16954
Abstract
A combination method of frequency domain photon migration (FDPM) and gas in scattering media absorption spectroscopy (GASMAS) is used for assessment of the mean optical path length (MOPL) and the gas absorption in gas-filled porous media, respectively. Polystyrene (PS) foams, with extremely high physical porosity, are utilized as sample materials for proof-of-principle demonstration. The optical porosity, defined as the ratio between the path length through the pores and the path length through the medium, is evaluated in PS foam and found consistent with the measured physical porosity. The method was also utilized for the study of balsa and spruce wood samples. (C) 2012 Optical Society of America
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
20
issue
15
pages
16942 - 16954
publisher
OSA
external identifiers
  • wos:000307055800079
  • scopus:84864151318
ISSN
1094-4087
DOI
10.1364/OE.20.016942
language
English
LU publication?
yes
id
a66a3116-3f2a-49b8-b8ef-6604fe5bc130 (old id 3191547)
date added to LUP
2012-11-27 08:58:55
date last changed
2017-11-19 04:02:58
@article{a66a3116-3f2a-49b8-b8ef-6604fe5bc130,
  abstract     = {A combination method of frequency domain photon migration (FDPM) and gas in scattering media absorption spectroscopy (GASMAS) is used for assessment of the mean optical path length (MOPL) and the gas absorption in gas-filled porous media, respectively. Polystyrene (PS) foams, with extremely high physical porosity, are utilized as sample materials for proof-of-principle demonstration. The optical porosity, defined as the ratio between the path length through the pores and the path length through the medium, is evaluated in PS foam and found consistent with the measured physical porosity. The method was also utilized for the study of balsa and spruce wood samples. (C) 2012 Optical Society of America},
  author       = {Mei, Liang and Svanberg, Sune and Somesfalean, Gabriel},
  issn         = {1094-4087},
  language     = {eng},
  number       = {15},
  pages        = {16942--16954},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Combined optical porosimetry and gas absorption spectroscopy in gas-filled porous media using diode-laser-based frequency domain photon migration},
  url          = {http://dx.doi.org/10.1364/OE.20.016942},
  volume       = {20},
  year         = {2012},
}