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Gas spectroscopy and optical path-length assessment in scattering media using a frequency-modulated continuous-wave diode laser

Mei, Liang LU ; Jayaweera, Hiran LU ; Lundin, Patrik LU ; Svanberg, Sune LU and Somesfalean, Gabriel LU (2011) In Optics Letters 36(16). p.3036-3038
Abstract
Simultaneous assessment of the spectroscopic absorption signal of gas enclosed in a scattering medium and the corresponding optical path length of the probing light is demonstrated using a single setup. Sensitive gas absorption measurements are performed by a tunable diode laser using wavelength-modulation spectroscopy, while the path length is evaluated by the frequency-modulated cw technique commonly used in the field of telecommunication. Proof-of-principle measurements are demonstrated with water vapor as the absorbing gas and using polystyrene foam as an inhomogeneously scattering medium. The combination of these techniques opens up new possibilities for straightforward evaluation of gas presence and exchange in scattering media. (C)... (More)
Simultaneous assessment of the spectroscopic absorption signal of gas enclosed in a scattering medium and the corresponding optical path length of the probing light is demonstrated using a single setup. Sensitive gas absorption measurements are performed by a tunable diode laser using wavelength-modulation spectroscopy, while the path length is evaluated by the frequency-modulated cw technique commonly used in the field of telecommunication. Proof-of-principle measurements are demonstrated with water vapor as the absorbing gas and using polystyrene foam as an inhomogeneously scattering medium. The combination of these techniques opens up new possibilities for straightforward evaluation of gas presence and exchange in scattering media. (C) 2011 Optical Society of America (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
36
issue
16
pages
3036 - 3038
publisher
Optical Society of America
external identifiers
  • wos:000293890800007
  • scopus:80051724712
ISSN
0146-9592
DOI
10.1364/OL.36.003036
language
English
LU publication?
yes
id
d68f0de8-9ca7-4555-86c5-563f0ba945fc (old id 2161890)
date added to LUP
2011-09-21 11:10:45
date last changed
2017-06-11 04:20:40
@article{d68f0de8-9ca7-4555-86c5-563f0ba945fc,
  abstract     = {Simultaneous assessment of the spectroscopic absorption signal of gas enclosed in a scattering medium and the corresponding optical path length of the probing light is demonstrated using a single setup. Sensitive gas absorption measurements are performed by a tunable diode laser using wavelength-modulation spectroscopy, while the path length is evaluated by the frequency-modulated cw technique commonly used in the field of telecommunication. Proof-of-principle measurements are demonstrated with water vapor as the absorbing gas and using polystyrene foam as an inhomogeneously scattering medium. The combination of these techniques opens up new possibilities for straightforward evaluation of gas presence and exchange in scattering media. (C) 2011 Optical Society of America},
  author       = {Mei, Liang and Jayaweera, Hiran and Lundin, Patrik and Svanberg, Sune and Somesfalean, Gabriel},
  issn         = {0146-9592},
  language     = {eng},
  number       = {16},
  pages        = {3036--3038},
  publisher    = {Optical Society of America},
  series       = {Optics Letters},
  title        = {Gas spectroscopy and optical path-length assessment in scattering media using a frequency-modulated continuous-wave diode laser},
  url          = {http://dx.doi.org/10.1364/OL.36.003036},
  volume       = {36},
  year         = {2011},
}