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Laser Imaging in Dense Sprays: SLIPI

Structured Laser Illumination Planar Imaging (SLIPI) reduces multiple light scattering applying laser imaging in dense sprays.
SLIPI is based on spatially modulated laser light sheets for Mie or LIF imaging. While multiply scattered light loses the modulation information, it is maintained for singly scattered light. When the stripe-like phase shifted images are combined correctly, the resulting SLIPI image shows higher image contrast and reveals inner spray structures, which are hidden when using conventional planar laser imaging.

     
Laser light sheet imaging in a hollow cone spray with and w/o SLIPI
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courtesy: Elias Kristensson, ILASS-Europe, 2013
References:
Y.N.Mishra, E. Kristensson, E. Berrocal, “Reliable LIF/Mie droplet sizing in
sprays using structured laser illumination planar imaging”, Optics Express,
Vol. 22, Issue 4, pp. 4480-4492 (2014),
http://dx.doi.org/10.1364/OE.22.004480

E. Berrocal, E. Kristensson, P. Hottenbach, M. Aldén , G. Gruenefeld,
“Quantitative imaging of a non-combusting diesel spray using structured
laser illumination planar imaging”, Appl. Phys. B (2012) 109:683–694

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