We present what to our knowledge are the first filtered Rayleigh scattering temperature measurements and use them in sooting flame. This new technique for two-dimensional thermography in gas combustion overcomes some of the major disadvantages of the standard Rayleigh technique. It suppresses scattered background light from walls or windows and permits detection of two-dimensional Rayleigh intensity distributions of the gas phase in the presence of small particles by spectral filtering of the scattered light.
© 1996 Optical Society of America
Original Manuscript: July 27, 1995
Published: April 1, 1996
D. Hoffman, K.-U. Münch, and A. Leipertz, "Two-dimensional temperature determination in sooting flames by filtered Rayleigh scattering," Opt. Lett. 21, 525-527 (1996)