Abstract

Broadband CARS spectra of N₂ and CO have been obtained from the postflame gases of rich CH₄/N₂O flames using the nonplanar BOXCARS technique. The temperature and concentration of both N₂ and CO in these flames were estimated from CARS spectra with the aid of model calculations and agreed with standard thermochemical predictions. In addition, several pure rotational H₂ CARS transitions, certain of which had been previously unobserved, were seen in several spectral regions, most notably in both the CO and NO CARS regions. These observations are important in future modeling of CARS data.

© 1983 Optical Society of America

Multiplex CARS for simultaneous measurement of temperature and CO₂ and H₂ concentrations in a combustion environment

J. P. Singh and F. Y. Yueh
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Quantitative CARS spectroscopy of CO₂ and N₂O

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