Laser Light Scattering

This chapter provides introduction to both the classical and quasi-elastic forms of laser light scattering, which can serve as an introductory text for students and a reference for research workers. Classical light scattering studies are concerned with the measurement of the intensity of scattered light as a function of the scattering angle. Lasers produce collimated, quasi-monochromatic radiation having high intensity. In all but the least expensive lasers, the output is highly polarized. The chapter describes information that can be obtained from the various experiments rather than either presenting a comprehensive survey of the literature. The decrease in intensity may seem a nuisance, but it turns out to be a unique source of information pertaining to the size and shape of the particle. Inhomogeneity in either the size or shape of the particles leads to ambiguity in the interpretation of the angular dependence of the scattered intensity.