Dual-broadband rotational CARS modelling of nitrogen at pressures up to 9 MPa. I. Inter-branch interference effect
Afzelius, Mikael LU and Bengtsson, Per-Erik LU
(2002)
In Applied Physics B
75(6-7).
p.763-769
- Abstract
- An improved model for pure rotational coherent anti-Stokes Raman scattering (CARS) has been developed or the dual-broadband approach. This model takes into account the fact that coherent anti-Stokes as well as Stokes radiation are generated simultaneously, and these two branches overlap and interact at high pressures giving rise to an inter-branch interference effect. In combustion studies, the anti-Stokes branch is used to determine temperature and concentrations of key species, of which nitrogen is the most widely used, and we have found that the interference effect on the anti-Stokes side is of such magnitude that it clearly needs to be taken into account at pressures of a few MPa. The necessary modifications to the total third-order... (More)
- An improved model for pure rotational coherent anti-Stokes Raman scattering (CARS) has been developed or the dual-broadband approach. This model takes into account the fact that coherent anti-Stokes as well as Stokes radiation are generated simultaneously, and these two branches overlap and interact at high pressures giving rise to an inter-branch interference effect. In combustion studies, the anti-Stokes branch is used to determine temperature and concentrations of key species, of which nitrogen is the most widely used, and we have found that the interference effect on the anti-Stokes side is of such magnitude that it clearly needs to be taken into account at pressures of a few MPa. The necessary modifications to the total third-order susceptibility are presented and a derivation of the convolution integral for a finite-bandwidth pump source is given. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/319647
- author
- Afzelius, Mikael
LU
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics B
- volume
- 75
- issue
- 6-7
- pages
- 763 - 769
- publisher
- Springer
- external identifiers
-
- wos:000180587100024
- scopus:0036874570
- ISSN
- 0946-2171
- DOI
- 10.1007/s00340-002-1019-0
- language
- English
- LU publication?
- yes
- id
- 0dc2d4c2-07ee-4b83-8cb5-96405e5a4710 (old id 319647)
- date added to LUP
- 2016-04-01 12:12:52
- date last changed
- 2022-03-28 21:51:20
@article{0dc2d4c2-07ee-4b83-8cb5-96405e5a4710,
abstract = {{An improved model for pure rotational coherent anti-Stokes Raman scattering (CARS) has been developed or the dual-broadband approach. This model takes into account the fact that coherent anti-Stokes as well as Stokes radiation are generated simultaneously, and these two branches overlap and interact at high pressures giving rise to an inter-branch interference effect. In combustion studies, the anti-Stokes branch is used to determine temperature and concentrations of key species, of which nitrogen is the most widely used, and we have found that the interference effect on the anti-Stokes side is of such magnitude that it clearly needs to be taken into account at pressures of a few MPa. The necessary modifications to the total third-order susceptibility are presented and a derivation of the convolution integral for a finite-bandwidth pump source is given.}},
author = {{Afzelius, Mikael and Bengtsson, Per-Erik}},
issn = {{0946-2171}},
language = {{eng}},
number = {{6-7}},
pages = {{763--769}},
publisher = {{Springer}},
series = {{Applied Physics B}},
title = {{Dual-broadband rotational CARS modelling of nitrogen at pressures up to 9 MPa. I. Inter-branch interference effect}},
url = {{http://dx.doi.org/10.1007/s00340-002-1019-0}},
doi = {{10.1007/s00340-002-1019-0}},
volume = {{75}},
year = {{2002}},
}