Lasers for Dynamic Light Scattering

Dynamic light scattering DLS is used to determine the size distribution and movement of small particles in suspension or polymers in solution. Coherent light passes through the sample between two polarizers and the speckle pattern is recorded. The dynamic information of the particles is derived from an autocorrelation of the intensity trace in the recorded images.

Laser for Dynamic Light Scattering. Courtesy of LS Instruments, Switzerland.
Courtesy of LS Instruments, Switzerland.