Abstract

Oxygen atoms have been detected by several techniques including spontaneous Raman scattering, coherent anti-Stokes Raman spectroscopy, intracavity dye laser spectroscopy, multiphoton ionization, and two-photon laser-induced fluorescence. Of these techniques, two-photon laser-induced fluorescence has received the most attention. Using this technique, a number of investigators have detected oxygen atoms in a variety of flames and discharges. The primary advantages of laser-induced fluorescence are the high spatial resolution and high sensitivity that can be attained. This is particularly important for combustion and plasma diagnostics where low atom concentration profiles could provide information concerning fundamental processes.

© 1985 Optical Society of America