Laser-induced fluorescence of O(3p 3 P), O 2 , and NO near 226 nm: photolytic interferences and simultaneous excitation in flames

摘要: Spectral overlaps between O atom two-photon transitions and one-photon O2 NO near 226 nm have been studied. Excitation of photodissociating levels can cause anomalously high concentration population measurements atoms in flames. We find that excitation 3P1 will minimize the photochemical interference, data presented here are necessary to quantify extent such effects. Alternatively, these be exploited obtain simultaneous laser-induced fluorescence detection O, O2, with a single laser.