Quasielastic Light Scattering from Polydisperse Polymer Solution

Quasielastic light scattering from rutile

Quasielastic light scattering in silicon

A dominant, broad central mode in the Brillouin spectrum of silicon was first reported by Sandercock in 1978. This feature was later ascribed to a two-phonon difference scattering process. However, the issue of quasielastic scattering in silicon has remained a major outstanding problem in Brillouin scattering, because similar central modes in other materials have commonly displayed two componen...

Light scattering from nonequilibrium concentration fluctuations in a polymer solution

Quasielastic light scattering for protein assembly studies.

Quasielastic light scattering (QLS) spectroscopy is an optical method for the determination of diffusion coefficients of particles in solution. In this chapter, we discuss the principles and practice of QLS with respect to protein assembly reactions. Particles undergoing Brownian motion produce fluctuations in scattered light intensity. We describe how the temporal correlation function of these...

Brillouin light-scattering from polymer gels

The experimental results of the Brillouin shift and width for poly(vinyl alcohol) and poly(vinyl chloride) gels as a function of gel network volume fraction have been analysed using the theory of Marqusee and Deutch for Brillouin light-scattering from polymer gels, incorporated with a new plausible assumption relating the speed of sound in the gel network with its volume fraction. It has been f...