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Development of rotational CARS for combustion diagnostics using a polarization approach

Vestin, Fredrik LU ; Afzelius, Mikael LU and Bengtsson, Per-Erik LU (2007) 31st International Symposium on Combustion In Proceedings of the Combustion Institute 31 I. p.833-840
Abstract
Rotational Coherent anti-Stokes Raman spectroscopy (CARS) has the last decades been developed into a useful tool for thermometry and concentration measurements in combustion. In this paper, we present a novel polarization approach of the technique, which will enhance its potential and widen the range of conditions at which it can be utilized. The theory of the polarization approach is described in detail. It is shown that by specific arrangement of the polarizations of the laser beams, total suppression of the non-resonant background signal can be obtained, and thus by probing only the resonant CARS signal the diagnostic utility of the technique increases. The main benefit of the approach is in situations where the non-resonant background... (More)
Rotational Coherent anti-Stokes Raman spectroscopy (CARS) has the last decades been developed into a useful tool for thermometry and concentration measurements in combustion. In this paper, we present a novel polarization approach of the technique, which will enhance its potential and widen the range of conditions at which it can be utilized. The theory of the polarization approach is described in detail. It is shown that by specific arrangement of the polarizations of the laser beams, total suppression of the non-resonant background signal can be obtained, and thus by probing only the resonant CARS signal the diagnostic utility of the technique increases. The main benefit of the approach is in situations where the non-resonant background signal is relatively high in comparison with the resonant signal. The high potential of polarization rotational CARS for thermometry is demonstrated in some illustrative examples, for example, nitrogen thermometry on the fuel side of diffusion flames, and carbon monoxide thermometry in the product gas of ethylene/oxygen/argon-flames. © 2006 The Combustion Institute. Published by Elsevier Inc. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Combustion diagnostics, Thermometry, Diffusion flames
in
Proceedings of the Combustion Institute
volume
31 I
pages
833 - 840
publisher
Elsevier
conference name
31st International Symposium on Combustion
external identifiers
  • wos:000252858000084
  • other:CODEN: SYMCAQ
  • scopus:34548770787
ISSN
1873-2704
1540-7489
DOI
10.1016/j.proci.2006.07.066
language
English
LU publication?
yes
id
5fc2ae42-fc18-4a8e-b8e9-c378123799a8 (old id 643304)
date added to LUP
2007-12-04 11:01:48
date last changed
2017-05-28 03:47:36
@inproceedings{5fc2ae42-fc18-4a8e-b8e9-c378123799a8,
  abstract     = {Rotational Coherent anti-Stokes Raman spectroscopy (CARS) has the last decades been developed into a useful tool for thermometry and concentration measurements in combustion. In this paper, we present a novel polarization approach of the technique, which will enhance its potential and widen the range of conditions at which it can be utilized. The theory of the polarization approach is described in detail. It is shown that by specific arrangement of the polarizations of the laser beams, total suppression of the non-resonant background signal can be obtained, and thus by probing only the resonant CARS signal the diagnostic utility of the technique increases. The main benefit of the approach is in situations where the non-resonant background signal is relatively high in comparison with the resonant signal. The high potential of polarization rotational CARS for thermometry is demonstrated in some illustrative examples, for example, nitrogen thermometry on the fuel side of diffusion flames, and carbon monoxide thermometry in the product gas of ethylene/oxygen/argon-flames. © 2006 The Combustion Institute. Published by Elsevier Inc. All rights reserved.},
  author       = {Vestin, Fredrik and Afzelius, Mikael and Bengtsson, Per-Erik},
  booktitle    = {Proceedings of the Combustion Institute},
  issn         = {1873-2704},
  keyword      = {Combustion diagnostics,Thermometry,Diffusion flames},
  language     = {eng},
  pages        = {833--840},
  publisher    = {Elsevier},
  title        = {Development of rotational CARS for combustion diagnostics using a polarization approach},
  url          = {http://dx.doi.org/10.1016/j.proci.2006.07.066},
  volume       = {31 I},
  year         = {2007},
}