Abstract
Rotational temperature of O2 has been measured in an atmospheric-air furnace using KrF laser-induced fluorescence. Average measurement errors of 10.7% and 5.1% over a temperature range of 1325–1725K were observed using two- and four-line excitation techniques, respectively. Ground-state depletion was observed for a spectral laser irradiance greater than approximately 7.5×106 W/cm2 cm−1. This technique is suitable for temperature measurements when the O2 vibrational population is not in thermal equilibrium.
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Grinstead, J.H., Laufer, G. & McDaniel, J.C. Rotational temperature measurement in high-temperature air using KrF laser-induced O2 fluorescence. Appl. Phys. B 57, 393–396 (1993). https://doi.org/10.1007/BF00357381
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DOI: https://doi.org/10.1007/BF00357381