Abstract
During the last years laser optical techniques have been used for detection of different species in flame environments. The most straightforward technique for this purpose is conventional absorption spectroscopy. Although this technique yields absolute number densities it has the drawback of being a line-of-sight method, which limits its applicability considerably. Laser-induced fluorescence (LIF) solves this problem being a point measurement method. This technique has also recently been developed for 1- and 2-D registrations of flame radicals.1–3 However, due to the quenching, i.e., the deexcitation due to collisions, quantitative LIF measurements are difficult to perform.
© 1986 Optical Society of America
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