Abstract

Laser fluorescence measurements have been performed to detect nitric oxide in a CH₄–O₂–N₂ flame at atmospheric pressure. For these measurements a frequency-doubled tunable dye laser was used to excite the UV γ-bands of nitric oxide. Sensitivities were adequate to detect naturally occurring levels of nitric oxide that were in the 20–30-ppm range. Higher sensitivities can be achieved using other currently available lasers having greater output intensities.

© 1980 Optical Society of America

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