Specific collision-induced effects in vibrational Raman spectroscopy of gaseous H2 and consequences in the diagnostics of combustion media

Pierre Joubert; Marie-Lise Dubernet; Jeanine Bonamy; Daniel Robert

doi:10.1117/12.267746

3 March 1997 Specific collision-induced effects in vibrational Raman spectroscopy of gaseous H₂ and consequences in the diagnostics of combustion media

Pierre Joubert, Marie-Lise Dubernet, Jeanine Bonamy, Daniel Robert

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Proceedings Volume 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy; (1997) https://doi.org/10.1117/12.267746
Event: 12th Symposium and School on High Resolution Molecular Spectroscopy, 1996, St. Petersburg, Russian Federation

Abstract

For the purpose of combustion diagnostics using hydrogen as a probe molecule, the usual perturbing molecules are O₂, N₂, H₂O, etc. For such molecular systems at high temperature, only semiclassical calculations of line broadening parameters are possible. Bykov et al. (Atmos. Oceanic Opt., 5, 587, 1992; ibid. 5, 728, 1992) have recently proposed improvements of a model previously developed by two of the authors, by introducing exact trajectories. The aim of this lecture is to present the first numerical tests of such improvements for the simple H₂-He system, for which close coupling calculations are also feasible. A good consistency is obtained with experiment. The extension to molecular systems of practical interest is thus promising.

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Pierre Joubert, Marie-Lise Dubernet, Jeanine Bonamy, and Daniel Robert "Specific collision-induced effects in vibrational Raman spectroscopy of gaseous H₂ and consequences in the diagnostics of combustion media", Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); https://doi.org/10.1117/12.267746

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KEYWORDS

Raman spectroscopy

Combustion

Data modeling

Diagnostics

Molecules

Temperature metrology

Argon

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