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Light scattering studies of Brownian motion in confined geometries

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Il Nuovo Cimento D

Summary

Dynamic light scattering can be a useful tool to determine the confinement of Brownian particles whose motion is restricted to dimensions comparable to the wavelength of the light. The theoretical form of the correlation function of the electric field scattered from such trapped particles has been derived and compared with the signal obtained both in a simulated experiment and in a real experiment where the particles are trapped in a glass wedge. This new result can be of relevance for particles trapped in various media such as a porous (transparent) media, a gel, a suspension of lamellar phases or even a concentrated colloidal suspension where a particle is «trapped» by its neighbours.

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Authors and Affiliations

  1. Laboratoire de Physique de la Matière Condensée, CNRS URA 190, Université de Nice Sophia Antipolis, F-06108, Nice Cedex, France

    N. Ostrowsky & L. Lobry

Authors
  1. N. Ostrowsky
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  2. L. Lobry
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Ostrowsky, N., Lobry, L. Light scattering studies of Brownian motion in confined geometries. Il Nuovo Cimento D 16, 1111–1118 (1994). https://doi.org/10.1007/BF02458791

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  • DOI: https://doi.org/10.1007/BF02458791

PACS 42.10

PACS 05.40

PACS 82.70

PACS 01.30.Cc

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