Quasielastic light scattering
Pecora, Robert Department of Chemistry, Stanford University, Stanford, California.
- Static light scattering
- Photon correlation spectroscopy
- Fabry-Perot interferometry
- Translational diffusion coefficients
- Rotational diffusion coefficients
- Other applications
- Links to Primary Literature
- Additional Readings
Small frequency shifts or broadening from the frequency of the incident radiation in the light scattered from a liquid, gas, or solid. The term quasielastic arises from the fact that the frequency changes are usually so small that, without instrumentation specifically designed for their detection, they would not be observed and the scattering process would appear to occur with no frequency changes at all, that is, elastically. The technique is used by chemists, biologists, and physicists to study the dynamics of molecules in fluids, mainly liquids and liquid solutions. It is often identified by a variety of other names, the most common of which is dynamic light scattering (DLS).
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