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High sensitivity gas spectroscopy of porous, highly scattering solids

Svensson, Tomas LU ; Andersson, Mats LU ; Rippe, Lars LU ; Johansson, Jonas; Folestad, Staffan and Andersson-Engels, Stefan LU (2008) In Optics Letters 33(1). p.80-82
Abstract
We present minimalistic and cost-efficient instrumentation employing tunable diode laser gas spectroscopy for the characterization of porous and highly scattering solids. The sensitivity reaches 3 x 10(-6) (absorption fraction), and the improvement with respect to previous work in this field is a factor of 10. We also provide the first characterization of the interference phenomenon encountered in high-resolution spectroscopy of turbid samples. Revealing that severe optical interference originates from the samples, we discuss important implications for system design. In addition, we introduce tracking coils and sample rotation as new and efficient tools for interference suppression. The great value of the approach is illustrated in an... (More)
We present minimalistic and cost-efficient instrumentation employing tunable diode laser gas spectroscopy for the characterization of porous and highly scattering solids. The sensitivity reaches 3 x 10(-6) (absorption fraction), and the improvement with respect to previous work in this field is a factor of 10. We also provide the first characterization of the interference phenomenon encountered in high-resolution spectroscopy of turbid samples. Revealing that severe optical interference originates from the samples, we discuss important implications for system design. In addition, we introduce tracking coils and sample rotation as new and efficient tools for interference suppression. The great value of the approach is illustrated in an application addressing structural properties of pharmaceutical materials. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Letters
volume
33
issue
1
pages
80 - 82
publisher
Optical Society of America
external identifiers
  • wos:000252648700030
  • scopus:39149124508
ISSN
0146-9592
DOI
10.1364/OL.33.000080
language
English
LU publication?
yes
id
afeaa3ab-b7d9-454e-bba7-89aa88e5e364 (old id 1198900)
date added to LUP
2008-09-10 17:50:01
date last changed
2017-06-11 03:57:50
@article{afeaa3ab-b7d9-454e-bba7-89aa88e5e364,
  abstract     = {We present minimalistic and cost-efficient instrumentation employing tunable diode laser gas spectroscopy for the characterization of porous and highly scattering solids. The sensitivity reaches 3 x 10(-6) (absorption fraction), and the improvement with respect to previous work in this field is a factor of 10. We also provide the first characterization of the interference phenomenon encountered in high-resolution spectroscopy of turbid samples. Revealing that severe optical interference originates from the samples, we discuss important implications for system design. In addition, we introduce tracking coils and sample rotation as new and efficient tools for interference suppression. The great value of the approach is illustrated in an application addressing structural properties of pharmaceutical materials.},
  author       = {Svensson, Tomas and Andersson, Mats and Rippe, Lars and Johansson, Jonas and Folestad, Staffan and Andersson-Engels, Stefan},
  issn         = {0146-9592},
  language     = {eng},
  number       = {1},
  pages        = {80--82},
  publisher    = {Optical Society of America},
  series       = {Optics Letters},
  title        = {High sensitivity gas spectroscopy of porous, highly scattering solids},
  url          = {http://dx.doi.org/10.1364/OL.33.000080},
  volume       = {33},
  year         = {2008},
}