Other
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jqsrt..47..201k&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 47, March 1992, p. 201-220.
Other
30
Electromagnetic Absorption, Light Scattering, Particulates, Aggregates, Approximation, Scattering Cross Sections, Spherules
Scientific paper
Three approximate solutions for light scattering and absorption by agglomerated or arbitrarily-shaped particles have been investigated by comparing both their solution formulas and numerical results. The Maxwell-Garnett relation has been shown to be an accurate optical mixing rule for light scattering by inhomogeneous particles. It is found that randomly-oriented, chain-like agglomerates of small particles, such as flame soot particles and other colloidal aggregates, have unique scattering characteristics. The extinction is roughly the same, whereas total and near-forward angular scattering are N times higher when comparing an agglomerate with the same number of individual spheres. Even randomly oriented, these chain-like agglomerates cannot be modeled by equivalent spheres, and they yield significant depolarized scattering.
Ku Jerry C.
Shim Kyoung-Hoon
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