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


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.


Beam Waist Main Beam Particle Anisotropy Anisotropic Sphere PNIPAM Shell 
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  1. 1.
    A. Wada, N. Suda, T. Tsuda, K. Soda, J. Chem. Phys. 50, 31 (1969)CrossRefADSGoogle Scholar
  2. 2.
    B.J. Berne, R. Pecora, Dynamic Light Scattering (R.E. Krieger, Malabar, FL, 1990)Google Scholar
  3. 3.
    V. Degiorgio, R. Piazza, T. Bellini, M. Visca, Adv. Colloid Interface Sci. 48, 61 (1994)CrossRefGoogle Scholar
  4. 4.
    V. Degiorgio, R. Piazza, R.B. Jones, Phys. Rev. E 52, 2707 (1995)CrossRefADSGoogle Scholar
  5. 5.
    G.B. Bantchev, P.S. Russo, R.L. McCarley, R.P. Hammer, Rev. Sci. Instrum. 77, 043902 (2006)CrossRefADSGoogle Scholar
  6. 6.
    M. Hoffmann, Y. Lu, M. Schrinner, M. Ballauff, L. Harnau, J. Phys. Chem. B 112, 14843 (2008)CrossRefGoogle Scholar
  7. 7.
    A.M. Shetty, G.M.H. Wilkins, J. Nanda, M.J. Solomon, J. Phys. Chem. C 113, 7129 (2009)CrossRefGoogle Scholar
  8. 8.
    V. Degiorgio, T. Bellini, R. Piazza, F. Mantegazza, Physica A 235, 279 (1997)CrossRefADSGoogle Scholar
  9. 9.
    C.M. Sorensen, R.C. Mockler, W.J. O'Sullivan, Phys. Rev. A 14, 1520 (1976)CrossRefADSGoogle Scholar
  10. 10.
    V. Degiorgio, M.A.C. Potenza, M. Giglio, Eur. Phys. J. E 29, 379 (2009)CrossRefGoogle Scholar
  11. 11.
    S. Bolisetty, M. Hoffmann, S. Lekkala, Th. Hellweg, M. Ballauff, L. Harnau, Macromolecules 42, 1264 (2009)CrossRefADSGoogle Scholar
  12. 12.
    M. Hoffmann, private communicationGoogle Scholar
  13. 13.
    H.C. Van de Hulst, Scattering by Small Particles (Dover, New York, 1957)Google Scholar
  14. 14.
    A.D. Snider, A. Garcia-Lopez, IEEE Trans. Antennas Propag. 54, 3840 (2006)CrossRefMathSciNetADSGoogle Scholar
  15. 15.
    D.W. Schaefer, B.J. Pecora, Phys. Rev. Lett. 28, 475 (1972)CrossRefADSGoogle Scholar
  16. 16.
    K. Schätzel, J. Mod. Opt. 38, 1849 (1991)CrossRefADSGoogle Scholar
  17. 17.
    W.V. Meyer, D.S. Cannell, A.E. Smart, T.W. Taylor, P. Tin, Appl. Opt. 36, 7551 (1997)CrossRefADSGoogle Scholar

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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