Abstract

Tunable-pulsed UV laser systems are available with sufficient energy to excite laser-induced fluorescence (LIF) by single-photon or multiphoton processes in a variety of atomic and molecular species. When combined with low-light-level imaging detectors, either linear or 2-D, LIF can be used to provide both temporally and spatially resolved measurements of the concentration of specific species in complex chemically reactive systems. The application of this technique in combustion research has progressed rapidly with a number of important chemical species having been observed: H, O, OH, CH, CO, O₂, C₂, NO, and NO₂.

© 1985 Optical Society of America