Abstract
O2 fluorescence induced by an ArF excimer laser was detected in a laminar diffusion flame under atmospheric pressure. O2 concentration and temperature in the flame were estimated by O2 fluorescence and Rayleigh scattering. The results obtained were as follows. (1) The O2 fluorescence in the diffusion flame could be well predicted by the rate equations. (2) O2 concentration in the flame was evaluated by O2 fluorescence together with the temperature measured by Rayleigh scattering. Measured O2 concentration agreed with that analyzed by a gas chromatograph.
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