Planar laser-induced fluorescence imaging

New measurement techniques based on planar (2-D) imaging of laser-induced fluorescence provide a powerful complement to single-point laser-based diagnostics, with significant potential to impact combustion and fluid mechanics research. Though still in an early stage of development, these imaging methods offer prospects for non-invasive, spatially and temporally resolved measurements of species concentrations and mole fractions, temperature, density, velocity and pressure. Extensions of these 2-D techniques to new flowfield variables and species, and to 3-D imaging by rapid scanning of the illumination plane, are already in progress.