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Direct measurement of S-branch N(2)-H(2) Raman linewidths using time-resolved pure rotational coherent anti-Stokes Raman spectroscopy.

Bohlin, Alexis LU ; Nordström, Emil LU ; Patterson, B D; Bengtsson, Per-Erik LU and Kliewer, C J (2012) In Journal of Chemical Physics 137(7).
Abstract
S-branch N(2)-H(2) Raman linewidths have been measured in the temperature region 294-1466 K using time-resolved dual-broadband picosecond pure rotational coherent anti-Stokes Raman spectroscopy (RCARS). Data are extracted by mapping the dephasing rates of the CARS signal temporal decay. The J-dependent coherence decays are detected in the time domain by following the individual spectral lines as a function of probe delay. The linewidth data set was employed in spectral fits of N(2) RCARS spectra recorded in binary mixtures of N(2) and H(2) at calibrated temperature conditions up to 661 K using a standard nanosecond RCARS setup. In this region, the set shows a deviation of less than 2% in comparison with thermocouples. The results provide... (More)
S-branch N(2)-H(2) Raman linewidths have been measured in the temperature region 294-1466 K using time-resolved dual-broadband picosecond pure rotational coherent anti-Stokes Raman spectroscopy (RCARS). Data are extracted by mapping the dephasing rates of the CARS signal temporal decay. The J-dependent coherence decays are detected in the time domain by following the individual spectral lines as a function of probe delay. The linewidth data set was employed in spectral fits of N(2) RCARS spectra recorded in binary mixtures of N(2) and H(2) at calibrated temperature conditions up to 661 K using a standard nanosecond RCARS setup. In this region, the set shows a deviation of less than 2% in comparison with thermocouples. The results provide useful knowledge for the applicability of N(2) CARS thermometry on the fuel-side of H(2) diffusion flames. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
137
issue
7
publisher
American Institute of Physics
external identifiers
  • wos:000308280700019
  • pmid:22920115
  • scopus:84865491845
ISSN
0021-9606
DOI
10.1063/1.4742915
language
English
LU publication?
yes
id
fb5b8cb1-1405-4db8-88c3-5227674431ee (old id 3047239)
date added to LUP
2012-09-13 08:46:49
date last changed
2017-06-25 03:21:45
@article{fb5b8cb1-1405-4db8-88c3-5227674431ee,
  abstract     = {S-branch N(2)-H(2) Raman linewidths have been measured in the temperature region 294-1466 K using time-resolved dual-broadband picosecond pure rotational coherent anti-Stokes Raman spectroscopy (RCARS). Data are extracted by mapping the dephasing rates of the CARS signal temporal decay. The J-dependent coherence decays are detected in the time domain by following the individual spectral lines as a function of probe delay. The linewidth data set was employed in spectral fits of N(2) RCARS spectra recorded in binary mixtures of N(2) and H(2) at calibrated temperature conditions up to 661 K using a standard nanosecond RCARS setup. In this region, the set shows a deviation of less than 2% in comparison with thermocouples. The results provide useful knowledge for the applicability of N(2) CARS thermometry on the fuel-side of H(2) diffusion flames.},
  articleno    = {074302},
  author       = {Bohlin, Alexis and Nordström, Emil and Patterson, B D and Bengtsson, Per-Erik and Kliewer, C J},
  issn         = {0021-9606},
  language     = {eng},
  number       = {7},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Direct measurement of S-branch N(2)-H(2) Raman linewidths using time-resolved pure rotational coherent anti-Stokes Raman spectroscopy.},
  url          = {http://dx.doi.org/10.1063/1.4742915},
  volume       = {137},
  year         = {2012},
}