Light Scattering in Liquids and Macromolecular Solutions

This volume contains most of the papers presented at the "Workshop on Quasielastic Light Scattering Studies of Fluids and Macromolecular Solutions" held at CISE, Segrate (Milano), Italy, from 11 to 13 May, 1979. Quasielastic light scattering (also called self-beating spectroscopy or intensity correlation spectroscopy) is the technique, introduced by Benedek and coworkers and by Cummins and coworkers about 15 years ago, by which dynamical information about a scattering medium is obtained through the measurement of the power spectrum (or the intensity correlation function) of the laser light scattered from the medium. The technique received in the early seventies a considerable impulse from the development of real-time fast digital correlators. The aim of the Workshop was to bring together a selected number of researchers in order to discuss recent developments in quasielastic light scattering and related optical methods and to report about new applications of the technique in physics, chemistry and biology. The first two days of the meeting were devoted to the oral presentations of papers. In the third day an informal session was held which included a very lively and thorough discussion of the highlights of the Workshop. Most part of the technical problems were debated during the informal session and during the subsequent visits to the light scattering laboratory in CISE.

I: Colloid and Polymer Solutions.- Some Experiments Using Quasielastic Light Scattering.- Diffusion Coefficients in Colloidal and Polymeric Solutions.- On the Long Time Diffusion of Interacting Brownian Particles.- The Application of Brownian Dynamics to Photon Correlation Spectroscopy.- Light Scattering From Sterically Stabilized Silica Particles.- Depolarized Light Scattering from Concentrated Particle Suspensions.- Intramolecular Motion of Polystyrene.- II: Micelles, Thin Films and Biological Macromolecules.- Quasielastic Light Scattering Study of Intermicellar Interactions.- Stability and Fusion of Vesicles.- Light Scattering by Water in Oil Microemulsions.- Dynamic Light Scattering from Thin, Free, Liquid Films.- Techniques for Light Scattering from Hemeglobin.- Quasi-Elastic Light Scattering in the Measurement of the Motion of Flagellated Algae.- III: Phase Transitions and Hydrodynamic Instabilities.- Hydrodynamic and Critical Phenomena: Rayleigh-Benard Instability as a Critical Phenomenon and Critical Fluctuations Reduced by Shear, Both Related to Mean Field Behavior.- Interface Fluctuations of Growing Ice Crystals.- Buoyancy Driven Instabilities in Two Component Systems.- Thermodynamic Analysis of Inverted Bifurcation.- IV: Forced Raylexgh Scattering.- Forced Rayleigh Light Scattering in Fluids.- Study by Forced Rayleigh Scattering of Thermal Excitations in a Stratified Liquid Layer.- Forced Rayleight Scattering as Optoelastic Probe in SA Liquid Crystals.- Forced Rayleigh Scattering in a Critical Binary Liquid Mixture.