Some Experimental Results on VH Light Scattering by Highly Viscous Liquids

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


As was shown by Stoicheff1 and Fabelinskii2, a fine structure appears in the VH spectrum of the light scattered by viscous liquids like quinoline or nitrobenzene. This structure is connected, as in flow birefringence, to a dynamical coupling3 between the orientational motion of molecules (the correlation time of which is τC) and the transverse velocity of the fluid which has a characteristic decay time of
$$\tau _s = \rho /\left( {\eta _s k^2 } \right)$$
where ρ and ηS are the density and the shear viscosity of the fluid, respectively, and k is the vector of the fluctuation which is studied.


Shear Viscosity Photon Correlation Spectroscopy Correlation Time Chem Phys Viscous Liquid 
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Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • Jacques Rouch
    • 1
  1. 1.Laboratoire D’Optique MoleculaireUniversité de Bordeaux ITalenceFrance

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