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Light Scattering Studies of Frequency-Dependent Transport Coefficients

  • P Lallemand
Part of the Nato Advanced Study Institutes Series book series (NSSB, volume 23)

Abstract

In this lecture, I shall discuss a few points concerning the study by light scattering of the existence of frequency-dependent transport coefficients in fluids. This will be mainly a complement to the lectures that are included in the 1973 Capri book1, in which I gave a discussion of the light scattering spectra in a fluid that exhibits acoustical relaxation. I assumed that one could describe the phenomenological behaviour of such a fluid by considering that its bulk viscosity included a frequency-dependent part such that ηb = η + ηn / (1 + iωτ). Following Mountain2, I showed that this leads to an additional component in the polarized spectrum, which is centered at the laser frequency, and whose width is of the order of 1/τ. The experimental implications of that theory were then discussed by Ostrowsky3.

Keywords

Bulk Viscosity Transport Coefficient Rayleigh Line Flow Birefringence Triphenyl Phosphite 
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

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • P Lallemand
    • 1
  1. 1.Laboratoire de Spectroscopie Hertzienne de l’E.N.S.PARIS CEDEX 05France

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