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Proceedings Paper

Propagation And Scattering Of Narrow Light Beams In Aerosol Media
Author(s): Luc R Bissonnette
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Paper Abstract

This paper reviews the derivation and validation of a model for beam propagation in aerosol media. The model is a paraxial approximation to the radiative transfer equation. The main feature is the representation of the power flux in the direction normal to the propagation axis by a diffusion process. Coupled partial differential equations are obtained for the forward and backward flux densities. The solutions are compared to beam profile and backscatter measurements performed in laboratory-generated water droplet clouds and to transmittance measurements in falling snow. The effects of optical depth, cloud inhomogeneity, wavelength and receiver field of view are studied. In all cases, the agreement between predictions and experimental data is very good.

Paper Details

Date Published: 10 August 1988
PDF: 11 pages
Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); doi: 10.1117/12.945770
Show Author Affiliations
Luc R Bissonnette, DREV-Defence Research Establishment Valcartier (Canada)

Published in SPIE Proceedings Vol. 0926:
Optical, Infrared, Millimeter Wave Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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