Pure rotational coherent anti-Stokes Raman spectroscopy in mixtures of CO and N-2
(2004) In Applied Optics 43(36). p.6664-6672- Abstract
- We present a model for quantitative measurements in binary mixtures of nitrogen and carbon monoxide by the use of dual-broadband rotational coherent anti-Stokes Raman spectroscopy. The model has been compared with experimental rotational coherent anti-Stokes Raman scattering spectra recorded within the temperature range of 294-702 K. Temperatures and concentrations were evaluated by spectral fits using libraries of theoretically calculated spectra. The relative error of the temperature measurements was 1-2%, and the absolute error of the CO concentration measurements was <0.5% for temperatures less than or equal to600 K. For higher temperatures, the gas composition was not chemically stable, and we observed a conversion of CO to CO2.... (More)
- We present a model for quantitative measurements in binary mixtures of nitrogen and carbon monoxide by the use of dual-broadband rotational coherent anti-Stokes Raman spectroscopy. The model has been compared with experimental rotational coherent anti-Stokes Raman scattering spectra recorded within the temperature range of 294-702 K. Temperatures and concentrations were evaluated by spectral fits using libraries of theoretically calculated spectra. The relative error of the temperature measurements was 1-2%, and the absolute error of the CO concentration measurements was <0.5% for temperatures less than or equal to600 K. For higher temperatures, the gas composition was not chemically stable, and we observed a conversion of CO to CO2. The influence of important spectroscopic parameters such as the anisotropic polarizability and Raman line-broadening coefficients are discussed in terms of concentration measurements. In particular, it is shown that the CO concentration measurement was more accurate if N-2-CO and CO-N-2 line-broadening coefficients were included in the calculation. The applicability of the model for quantitative flame measurements is demonstrated by measuring CO concentrations in ethylene/air flames. (C) 2004 Optical Society of America. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/259052
- author
- Afzelius, Mikael LU ; Brackmann, Christian LU ; Vestin, Fredrik LU and Bengtsson, Per-Erik LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 43
- issue
- 36
- pages
- 6664 - 6672
- publisher
- Optical Society of America
- external identifiers
-
- pmid:15646786
- wos:000225916500014
- ISSN
- 2155-3165
- language
- English
- LU publication?
- yes
- id
- 5edab525-42a5-40df-b516-f891be8d5b72 (old id 259052)
- date added to LUP
- 2016-04-01 12:16:28
- date last changed
- 2018-11-21 20:05:44
@article{5edab525-42a5-40df-b516-f891be8d5b72, abstract = {{We present a model for quantitative measurements in binary mixtures of nitrogen and carbon monoxide by the use of dual-broadband rotational coherent anti-Stokes Raman spectroscopy. The model has been compared with experimental rotational coherent anti-Stokes Raman scattering spectra recorded within the temperature range of 294-702 K. Temperatures and concentrations were evaluated by spectral fits using libraries of theoretically calculated spectra. The relative error of the temperature measurements was 1-2%, and the absolute error of the CO concentration measurements was <0.5% for temperatures less than or equal to600 K. For higher temperatures, the gas composition was not chemically stable, and we observed a conversion of CO to CO2. The influence of important spectroscopic parameters such as the anisotropic polarizability and Raman line-broadening coefficients are discussed in terms of concentration measurements. In particular, it is shown that the CO concentration measurement was more accurate if N-2-CO and CO-N-2 line-broadening coefficients were included in the calculation. The applicability of the model for quantitative flame measurements is demonstrated by measuring CO concentrations in ethylene/air flames. (C) 2004 Optical Society of America.}}, author = {{Afzelius, Mikael and Brackmann, Christian and Vestin, Fredrik and Bengtsson, Per-Erik}}, issn = {{2155-3165}}, language = {{eng}}, number = {{36}}, pages = {{6664--6672}}, publisher = {{Optical Society of America}}, series = {{Applied Optics}}, title = {{Pure rotational coherent anti-Stokes Raman spectroscopy in mixtures of CO and N-2}}, volume = {{43}}, year = {{2004}}, }