Abstract
In order to interpret concentration measurements using planar laser-induced fluorescence (PLIF), it is necessary to understand the systematic and statistical errors that accompany those measurements. High-power lasers provide both increased signal-to-noise ratios (desirable) and intensity-induced deviations from linearity (undesirable). This paper reviews and argues for modification of current criteria for use of fluorophores for quantitative PLIF imaging, and makes use of a modified new protocol to qualify the fluorophore Rhodamine-WT for use in quantitative PLIF imaging. The key element is the decision to operate the imaging experiment under optically thin conditions.
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