Application of photon correlation spectroscopy to the study of uniform shear-flow

We study the application of homodyne photon correlation spectroscopy (HPCS) to a system of randomly diffusing particles dispersed in a uniform shear-f low fluid. The flow is generated in a Zimm viscometer-type Taylor-Couette c ell. Detecting the scattered intensity from the diffusing particles through a single slit or multiple slits, one can not only study the uniform shear- nature of the Taylor-Couette flow but also transform the spatial informatio n of the scattering volume into time information by using a HPCS technique. We discuss the theoretical and the experimental aspects of this new applic ation to hydrodynamics.