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The European Physical Journal E

, Volume 31, Issue 1, pp 69–72 | Cite as

Confocal zero-angle dynamic depolarized light scattering

  • M. A. C. Potenza
  • T. Sanvito
  • M. D. Alaimo
  • V. Degiorgio
  • M. Giglio
Regular Article

Abstract

We present a novel Dynamic Depolarized Scattering method based on a tight confocal, zero scattering angle, heterodyne scheme. The method is highly immune from parasitic multiple-scattering contributions, so that it can operate with non-index-matched samples presenting large turbidity. It provides measurements of both rotational and translational diffusion coefficients, the latter via number fluctuation spectroscopy. In addition, the amplitude ratio between the two baselines for the fast rotational mode and the slow translational mode can be used to determine the particles intrinsic birefringence.

Keywords

Beam Waist Main Beam Particle Anisotropy Anisotropic Sphere PNIPAM Shell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • M. A. C. Potenza
    • 1
  • T. Sanvito
    • 1
  • M. D. Alaimo
    • 1
  • V. Degiorgio
    • 2
  • M. Giglio
    • 1
  1. 1.Dipartimento di FisicaUniversità di MilanoMilanoItaly
  2. 2.Dipartimento di ElettronicaUniversità di PaviaPaviaItaly

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