Quantitative and Spatially Resolved Measurement of Atomic Potassium in Combustion Using Diode Laser
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摘要:
A compact optical setup for quantitative and spatially resolved measurement of atomic alkali concentration in combustion is demonstrated.Tunable diode laser absorption spectroscopy and laser-induced fluorescence are combined using a single continuous wave diode laser to measure the line-integration concentration and the relative distribution simultaneously,thereby obtaining the absolute concentration distribution along the laser beam.The results indicate the good performance of this method for one-dimensional quantitative measurement.