Abstract
Recently developed nonintrusive laser-based spectroscopic techniques for combustion diagnostics are providing important results that serve as stringent tests for present and developing flame models. Laser-induced fluorescence (LIF) and resonance enhanced multiphoton ionization, in particular, have the high sensitivity, spatial resolution, and species selectivity needed to measure spatially resolved species concentration and temperature profiles in flames. In propellantlike flames in which NO2 is the primary oxidizer, however, these techniques are severely restricted since NO2 is photolyzed at wavelengths <405 nm. This affects the local flame temperature and species concentrations measured.
© 1991 Optical Society of America
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