Send to

Choose Destination
See comment in PubMed Commons below
Appl Opt. 1983 Jan 15;22(2):333-8.

Determination of velocity gradients with scattered light cross-correlation measurements.

Author information

  • 1Universitat Bremen, Fachbereich Physik, D 2800 Bremen 33, Federal Republic of Germany.


The space-time correlation function of the intensity of light scattered off a medium with a constant velocity gradient has been calculated. One property, in particular, of this correlation function, which may be referred to as speckle motion or speckle flow, enables an experimental determination of the tensor components of the velocity gradient. Influence of Brownian motion and finite scattering volume are estimated. Experimental results, obtained at a tube flow, are shown to be in accordance with the theory.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center