Light scattering lab
Soft Matter at Interfaces

The light scattering instrument consists of an ALV goniometer setup with a Nd:YAG laser (l = 532 nm; 70 mW) and an Argon laser (l = 458 nm, 488 nm, 514 nm; tunable laser power) as switchable light sources. The setup can be used for dynamic and static light scattering in an angle range at each angle between 30° and 110°.

According to the used type of light scattering, information about particle shapes and sizes, polydispersity, the interaction between colloidal particles and the molecular weight can be achieved. In the field of polymer synthesis and microemulsions light scattering is an important method to characterize the samples. Thus, the diameter of microemulsion as well as the diameter and molecular weight of spherical shaped polymer particles can be measured.

Further information

  • Berne, B.J. Pecora R., Dynamic light scattering, Dover Publication, 2000, Toronto
  • Pusey, P. N. Dynamic Light Scattering, in: Neutrons, X-rays and Light: Scattering Methods Applied to Soft Condensed Matter, eds. P. Lindner, T. Zemb, Elsevier, 2002
  • Glatter, O. Static Light Scattering of large Systems, in: Neutrons, X-rays and Light: Scattering Methods Applied to Soft Condensed Matter, eds. P. Lindner, T. Zemb, Elsevier, 2002

Lab impressions