Abstract

We have made simultaneous temperature measurements by degenerate four-wave mixing (DFWM) And absorption spectroscopy of OH in a CH4–air, lifted-diffusion flame. After we corrected the DFWM data for laser beam absorption of as much as 60%, the DFWM-based temperatures were in good agreement with temperatures derived strictly from the absorption data, as well as a one-dimensional reacting flow simulation.

© 1996 Optical Society of America

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