Detrimental effects to quantitative interpretation of Mie and laser-induced fluorescence images of hollow-cone sprays were investigated. The attenuation of the laser beam leads to locally unknown intensities rendering it impossible to obtain high-fidelity images of these sprays. Two strategies that use bidirectional illumination of the spray are discussed and evaluated. Conditions for which a bidirectional illumination, single-image detection will allow good recovery of the spray structure are identified. Furthermore, the attenuation of laser-induced fluorescence signals on their path through the spray is quantified.
© 2001 Optical Society of America
(100.3010) Image processing : Image reconstruction techniques
(110.2960) Imaging systems : Image analysis
(260.2510) Physical optics : Fluorescence
(290.2200) Scattering : Extinction
(290.5820) Scattering : Scattering measurements
Volker Sick and Boris Stojkovic, "Attenuation Effects on Imaging Diagnostics of Hollow-Cone Sprays," Appl. Opt. 40, 2435-2442 (2001)