Scattering pattern of a quasitransparent core-shell particle
- 1 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (11) , 6816-6822
- https://doi.org/10.1103/physreva.42.6816
Abstract
Nonisotropic scattering patterns showing a minimum for small and almost transparent core-shell particles are discussed. It is shown that the Rayleigh-Gans theory will not predict accurately the scattering by such particles. A law of corresponding patterns is established for small core-shell particles with an effective index of refraction as close as possible to that of the medium. Based on this nonisotropic scattering phenomenon, a method for determining the thickness itself and its distribution of very thin coatings on small colloidal particles is proposed.Keywords
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