Laser-induced saturated fluorescence of SrOH in flames.
Laser-induced fluorescence measurements of SrOH have been made in a fuel-rich sooting atmospheric pressure C(2)H(4)/air diffusion flame seeded with a strontium salt. The dependence of fluorescence intensity on laser spectral intensity was observed to reach near full saturation at a laser spectral intensity of 10(10) W/cm(2) cm(-1). To our knowledge, this is the first observation of the saturated fluorescence of a polyatomic species in a flame. The precise conditions in which saturation can be observed, and the factors which hinder its observation, are discussed in detail. Comparisons are made with OH fluorescence measurements in the same flame.
Bonczyk
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PA