Simultaneous multiple-line Raman/Rayleigh/LIF measurements in combustion

It is demonstrated that multiple 1D Raman scattering, Rayleigh scattering, and laser-induced fluorescence (LIF) measurements can be performed simultan eously. This can be used for quasi-2D (or quasi-3D) single-shot measurement s of multiple species and the temperature in turbulent reacting and non-rea cting flows. The technique has the potential to yield more precise informat ion than most competitive planar imaging approaches in combustion. For exam ple, it can be used to overcome Raman/LIF interference problems in technica l flames. This is achieved by a new optical set-up that makes use of an ima ging spectrograph combined with fiber optics.