Abstract

We have discussed the effect of using a finite aperture in the collection optics of autocorrelation light-scattering experiments. Finite-aperture broadening has no substantial effect on the central Rayleigh component in the absence of external fields. However, such effects are very important for Brillouin and electrophoretic light-scattering experiments. Finite-aperture effects cannot explain the discrepancy between the measurements by Berge et al. and Jamieson and Walton of the mutual diffusion coefficient of the carbon disulfide-acetone system.

© 1974 Optical Society of America

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