Raman scattering at 532 and 355 nm in atmospheric pressure propane/air flames, with and without liquid fuels

C Dreyer, T Parker, Mark Linne

Research output: Contribution to journalArticlepeer-review

Abstract

We discuss an experimental investigation of Raman scattering spectroscopy in the vicinity of a simulated reacting liquid fuel spray. Spray flames are known to produce interference from droplet elastic scattering, laser-induced fluorescence, and laser-induced incandescence of soot. The goal in this work is to evaluate various experimental approaches to this challenging problem. We evaluate Raman scattering from both 532 and 355 nm beams (second and third harmonics of Nd : YAG), at various polarization orientations and over various lifetimes. We discuss tradeoffs between the various approaches and identify operating regimes in which such Raman measurements are possible. Perhaps the most compelling finding of this work is that the third harmonic of Nd : YAG holds more promise for measurement in high-pressure, combusting spray environments than has been previously thought.
Original languageEnglish
Pages (from-to)121-130
JournalApplied Physics B
Volume79
Issue number1
DOIs
Publication statusPublished - 2004

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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