Spectroscopic Temperature Measurements on Laser-Produced Flames
- 15 April 1967
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 46 (8), 2881-2885
- https://doi.org/10.1063/1.1841148
Abstract
Time‐integrated spectroscopic intensity measurements have been made on the flame produced by the interaction of a focused ruby laser with powdered solids. Target materials used were Ba(AlO2)2, CaS, C, and Al microspheres. Excitation temperatures of 24 000° and 9000°K have been inferred from the Ba and Ca spectra. Vibrational and rotational temperatures for AlO, C2, and CN were found to lie in the range of 3600° to 5600°K. It is probable that excitation of the atomic and molecular spectra result from collisions between the emitting species and free electrons which have been superheated by absorption of a small fraction of the laser‐beam energy.Keywords
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