Light Scattering from Non-Gaussian Concentration Fluctuations
- 21 February 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (8), 475-478
- https://doi.org/10.1103/physrevlett.28.475
Abstract
Quasielastic light-scattering studies from a solution of 1-μm-diam polystyrene spheres indicate that at sufficient dilution the homodyne autocorrelation function is not consistent with the common assumption that the concentration fluctuations are Gaussian stochastic processes. In this note we show that the non-Gaussian behavior at low concentrations arises because the particles in the scattering volume are Poisson distributed.Keywords
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