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RESEARCH PRODUCT
Determination of temperature by stimulated raman scattering of molecular nitrogen, oxygen, and carbon dioxide
Guy MillotBruno LavorelC. WengerGil Fanjouxsubject
Materials sciencePhysics and Astronomy (miscellaneous)Dicke effectRelaxation (NMR)General EngineeringAnalytical chemistryGeneral Physics and AstronomyNonlinear opticschemistry.chemical_elementOxygenSpectral linesymbols.namesakechemistryThermocouplesymbolsMotional narrowingRaman scatteringdescription
We have determined the temperature from SRS spectra of N2-N2, N2-CO2, O2-O2, and CO2-CO2 recorded in wide pressure and temperature ranges. The fitting procedure takes simultaneously into account the Dicke effect and motional narrowing. We have quantified the accuracy of the MEG and ECS-P models for rotational relaxation. The temperature extracted from each model is compared with thermocouple measurements. The influence of vibrational broadening and shifting is discussed in detail.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-05-01 | Applied Physics B Photophysics and Laser Chemistry |