Doppler Shifts in Light Scattering from Pure Liquids and Polymer Solutions

A framework for interpreting experiments on Doppler shifts in light scattering from pure liquids and polymer solutions is presented. The spectral density of the light scattered into a given frequency range and angle by a liquid composed of identical, isotropic particles much smaller than the wavelength of the incident light is expressed in terms of the Fourier transform of the two-body space—time correlation function. The formalism is then...