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Dual-broadband rotational CARS modelling of nitrogen at pressures up to 9 MPa. II. Rotational Raman line widths

Afzelius, Mikael LU ; Bengtsson, Per-Erik LU ; Bood, J; Bonamy, J; Chaussard, F; Berger, H and Dreier, T (2002) In Applied Physics B 75(6-7). p.771-778
Abstract
Rotational coherent anti-Stokes Raman spectroscopy (CARS) is a well-established spectroscopic technique for thermometry at pre-combustion temperatures an atmospheric pressure. However, at pressures of several MPa, a previous investigation revealed large discrepancies between experimental data and the theoretical model. A re-evaluation has been made of these data (at room temperature and in the range 1.5-9 MPa) with two improvements to the spectral code. The first is the inclusion of an inter-branch interference effect, which is described in detail in Paper I. The second is the use of experimental S-1-branch Raman line widths measured at 295 K, with a temperature dependence extracted from semi-classical calculations following the... (More)
Rotational coherent anti-Stokes Raman spectroscopy (CARS) is a well-established spectroscopic technique for thermometry at pre-combustion temperatures an atmospheric pressure. However, at pressures of several MPa, a previous investigation revealed large discrepancies between experimental data and the theoretical model. A re-evaluation has been made of these data (at room temperature and in the range 1.5-9 MPa) with two improvements to the spectral code. The first is the inclusion of an inter-branch interference effect, which is described in detail in Paper I. The second is the use of experimental S-1-branch Raman line widths measured at 295 K, with a temperature dependence extracted from semi-classical calculations following the Robert-Bonamy formalism. It is shown that these two modifications significantly improve the theoretical model, since both the spectral fits and the accuracy of the evaluated temperatures are considerably improved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics B
volume
75
issue
6-7
pages
771 - 778
publisher
Springer
external identifiers
  • wos:000180587100025
  • scopus:0036874132
ISSN
0946-2171
DOI
10.1007/s00340-002-1020-7
language
English
LU publication?
yes
id
5e275af1-6839-44a3-beff-a5f74531d088 (old id 319650)
date added to LUP
2007-08-06 12:47:50
date last changed
2017-01-01 04:25:03
@article{5e275af1-6839-44a3-beff-a5f74531d088,
  abstract     = {Rotational coherent anti-Stokes Raman spectroscopy (CARS) is a well-established spectroscopic technique for thermometry at pre-combustion temperatures an atmospheric pressure. However, at pressures of several MPa, a previous investigation revealed large discrepancies between experimental data and the theoretical model. A re-evaluation has been made of these data (at room temperature and in the range 1.5-9 MPa) with two improvements to the spectral code. The first is the inclusion of an inter-branch interference effect, which is described in detail in Paper I. The second is the use of experimental S-1-branch Raman line widths measured at 295 K, with a temperature dependence extracted from semi-classical calculations following the Robert-Bonamy formalism. It is shown that these two modifications significantly improve the theoretical model, since both the spectral fits and the accuracy of the evaluated temperatures are considerably improved.},
  author       = {Afzelius, Mikael and Bengtsson, Per-Erik and Bood, J and Bonamy, J and Chaussard, F and Berger, H and Dreier, T},
  issn         = {0946-2171},
  language     = {eng},
  number       = {6-7},
  pages        = {771--778},
  publisher    = {Springer},
  series       = {Applied Physics B},
  title        = {Dual-broadband rotational CARS modelling of nitrogen at pressures up to 9 MPa. II. Rotational Raman line widths},
  url          = {http://dx.doi.org/10.1007/s00340-002-1020-7},
  volume       = {75},
  year         = {2002},
}