Abstract

The scattering cross sections of optically dense polystyrene-latex suspensions are determined as a function of wavelength, particle size, and particle concentration by using the anisotropic diffusion approximation to the radiative transport equation (or photon diffusion model) in conjunction with reflectance measurements from a thin, parallel-sided suspension cell. Corrections for internal and external surface reflection effects are made. Corresponding calculations are also made of the scattering cross sections based on published values of the Mie-scattering coefficient and phase function for single-particle scattering by making allowance for the fact that the effective refractive index of the medium surrounding a particle varies linearly with the volume concentration of surrounding scatterers. General agreement is found between the experimental and calculated values of the scattering cross sections. In particular a quantitative explanation is obtained for the decrease of scattering efficiency with volume concentration of scatterers.

© 1973 Optical Society of America

Scattering and extinction cross sections for a spherical particle coated with an oriented molecular layer

J. Roth and M. J. Dignam
J. Opt. Soc. Am. 63(3) 308-311 (1973)

Light Scattering by Spherical Particles*

David Sinclair
J. Opt. Soc. Am. 37(6) 475-480 (1947)

Light Scattering by Spherical Particles: Radiation Pressure, Asymmetry Factor, and Extinction Cross Section

William M. Irvine
J. Opt. Soc. Am. 55(1) 16-21 (1965)

Particle sizing in strongly turbid suspensions with the one-beam cross-correlation dynamic light-scattering technique

Anthony J. Adorjan, James A. Lock, Thomas W. Taylor, Padetha Tin, William V. Meyer, and Anthony E. Smart
Appl. Opt. 38(15) 3409-3416 (1999)

Investigation of static structure factor in dense suspensions by use of multiply scattered light

Rajesh Shinde, Ganesh Balgi, Steven Richter, Sukanta Banerjee, Jeffery Reynolds, Joseph Pierce, and Eva Sevick-Muraca
Appl. Opt. 38(1) 197-204 (1999)