Simultaneous vibrational and pure rotational coherent anti-stokes Raman spectroscopy for temperature and multispecies concentration measurements demonstrated in sooting flames

Applied Optics
Christian BrackmannAlfred Leipertz

Abstract

The potential of measuring temperature and multiple species concentrations (N2, O2, CO) by use of combined vibrational coherent anti-Stokes Raman spectroscopy (CARS) and pure rotational CARS has been investigated. This was achieved with only one Nd:YAG laser and one dye laser together with a single spectrograph and CCD camera. From measurements in premixed sooting C2H4-air flames it was possible to evaluate temperatures from both vibrational CARS and rotational CARS spectra, O2 concentration from the rotational CARS spectra, and CO concentration from the vibrational CARS spectra. Quantitative results from premixed sooting C2H4-air flames are presented, and the uncertainties in the results as well as the possibility of extending the combined CARS technique for probing of additional species are discussed.

References

Aug 15, 1985·Applied Optics·A C Eckbreth, T J Anderson

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Citations

Jul 23, 2004·The Journal of Chemical Physics·Mikael AfzeliusJeanine Bonamy
Mar 12, 2010·Applied Optics·Sarah A TedderPaul M Danehy
Jul 11, 2021·The Review of Scientific Instruments·Anand SankaranarayananNeeraj Kumbhakarna

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