Abstract

Particle sizing is a topic of great interest for the characterization of many biological, chemical and physical systems. Among the techniques which deal with particle sizing, the optical methods and, in particular the scattering techniques, are the most suitable and convenient ones. Indeed, they allow the characterization of a large number of particles to be carried out in situ and in real time. Scattering techniques include dynamic light scattering for studying submicron particles, low angle elastic light scattering for particles larger than microns, and spectral extinction methods for particles of intermediate size. This last method is probably the most convenient one since it requires a very simple optical layout, obtainable, for example, by adapting commercial spectrophotometers.

© 1996 Optical Society of America