Absorption by Particle Edges and Asperities
Measurements of infrared emittance from powders indicate that edges and other asperities on the particles cause enhanced absorption. A theory of the particle phase function, in which the asperities are represented by a surface distribution of induced dipoles, was able to fit the experimental results and to predict the outcome of further experiments correctly.
KeywordsSurface Distribution Electric Vector Surface Asperity Free Space Wavelength Particle Size Dependence
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