Degenerate four-wave mixing spectroscopy and spectral simulation of C2 in an atmospheric pressure oxy-acetylene flame
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High resolution spectroscopy and spectral simulation of C2 using degenerate four-wave mixing
Degenerate four-wave mixing in the sub-Doppler phase conjugate geometry was used to record high resolution spectra of the d Pg – a Pu ~0–0! Swan band of C2 produced in an oxy-acetylene flame. The line positions of isolated transitions were measured to an accuracy of ;3310 cm and calibrated using a Fizeau interferometer system. The data obtained from these spectra was used to calculate rotationa...
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Thermometry of an oxy-acetylene flame using multiplex Degenerate Four-Wave Mixing (DFWM) of C2 is demonstrated. More than 100 rotational transitions in the d3Hg ~ a3H,, (0, 0) Swan band of C2 could be recorded simultaneously by use of a pulsed, broad bandwidth "modeless" laser. Temperatures were inferred by fitting temperature-dependent synthetic spectra of singleor multiple-shot averaged spect...
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