Features in the angular structure of light scattered by a layer of partially ordered soft particles

✍ Scribed by Valery A. Loiko; Vladimir V. Berdnik

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 252 KB
• Volume: 88
• Category: Article
• ISSN: 0022-4073
• DOI: 10.1016/j.jqsrt.2004.01.005

✦ Synopsis

The angular structure of light scattered by layers with a high concentration of monodisperse optically soft spherical particles has been analyzed using the interference approximation to describe the collective scattering effects, the radiative transfer theory to describe the light field in the layer, and the Mie theory to describe the characteristics of scattering by an individual particle.

It has been shown that in the close-packed layers of optically soft particles an additional maximum on the angular dependence of light transmitted through the layer can be observed, if the phase function has a minimum at zero scattering angle due to the partial ordering of scatterers. It takes place at a scattering angle coinciding with the direction of the incident light. If the phase function of a concentrated layer has a primary maximum at scattering angles larger than 45 • , then an additional maximum in the backscattered light can be observed. Its position is determined by the maximum location on the scattering phase function. The luminance values at the maxima can exceed those at nearby angles by a factor of about one and a haft.