Quasielastic Light Scattering

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...

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...

Quasielastic light scattering study of amyloid β-protein fibrillogenesis.

Quasielastic light scattering (QLS) spectroscopy is a noninvasive optical method for studying the dynamic properties of macromolecular solutions. Its most important application is the determination of diffusion coefficients, from which the sizes of particles in solution may be estimated. The technique thus is particularly useful for monitoring assembly (polymerization and aggregation) reactions...

Quasielastic K-nucleus scattering

Quasielastic K-nucleus scattering data at q5290, 390, and 480 MeV/c are analyzed in a finite nucleus continuum random phase approximation framework, using a density-dependent particle-hole interaction. The reaction mechanism is consistently treated according to Glauber theory, keeping up to two-step inelastic processes. A good description of the data is achieved, also providing a useful constra...