Laser speckle techniques: Application in polymer physics

Abstract

The methods of measuring SP correlation are presented with examples of application to polymer solids. The system for interactive picture analysis useful for extraction of various types of physical information for both real‐ and Fourier‐space images is described.

Time-Resolved Small-Angle Light Scattering Apparatus

“…Even larger scattering entities can be analyzed using a CCD camera and image processing. It is well known that the high coherence of the laser light used for illumination is accompanied by the speckle effect [2], which adversely affects the signal-to-noise ratio of the scattered light intensity. A variety of techniques have been developed to solve this problem, based mainly on the spatial integration of the light collected in a light scattering experiment.…”