抄録
OH fluorescence induced by a XeCl excimer laser was detected in a laminar diffusion flame. The OH concentration and temperature in the flame were estimated by OH fluorescence and Rayleigh scattering. The results obtained are as follows. (1) The spectrum of OH fluorescence was numerically simulated by rate equations taking account of many absorption transitions excited by the XeCl excimer laser and it predicted the experimental results well. (2) Relative and absolute OH concentration were estimated by the measured fluorescence and rate equations. (3) Rayleigh scattering was separated from OH fluorescence to measure flame temperature. The measured temperature agreed with that obtained by the use of Rayleigh scattering by an argon ion laser.
