Department of complex matter

Photon correlation spectroscopy (PCS, DLS)

Dynamic light scattering (DLS) from various sample media (solutions, liquid crystal cells, thin surface and free standing films, composite media, etc.) is analysed using an ALV-6010/160 digital correlator that enables measurements in the range of 10-8-103s and a He-Ne laser (25 mW at 632.8 nm) as a light source. The normalized intensity autocorrelation function of the scattered light is detected. Different types of scattering geometries and scattering angles in the range 0-140o can be selected. The temperature of the sample can be varied from room temperature up to 150 oC. By combining incident beams from the He-Ne (632.8 nm) and Argon Ion (514 nm or 488 nm) laser sources the setup can be extended to dual-colour cross-correlation spectroscopy.

 

Responsible person:

  • Prof. Dr. Irena Drevenšek Olenik

    Department for Complex Matter
    Jožef Stefan Institute
    Jamova 39
    SI-1000 Ljubljana
    Slovenia

     
     

    Room: C 215
    Tel: + 386 1 477 3647
    Fax: + 386 1 477 3998
    irena.drevensek@ijs.si