Light scattering studies of fluid interfaces
Light scattering studies of fluid interfaces
The theory of the dispersion of thermally driven capillary waves on air-liquid and liquid-liquid interfaces is presented. Heterodyne light beating spectroscopy is used to study the propagation characteristics of these waves. The experimental procedure and the theory of the technique are discussed. The broadening of the scattered light spectra due to the instrumental effects and the theory of correction of the experimental data are shown. Different air-liquid, liquid-liquid and polarised mercury electrolyte interfaces are studied. The interfacial tension and the viscosity of these interfaces are evaluated from the frequency and the damping constant of the capillary waves. The results are shown to agree well with the reported values with the exception of the viscosity of mercury. This anomalous behaviour is discussed in detail in the last chapter.
University of Southampton
Karunathilaka, Siyambalagoda Arachige Gamini Ranjith
1981
Karunathilaka, Siyambalagoda Arachige Gamini Ranjith
Karunathilaka, Siyambalagoda Arachige Gamini Ranjith
(1981)
Light scattering studies of fluid interfaces.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
The theory of the dispersion of thermally driven capillary waves on air-liquid and liquid-liquid interfaces is presented. Heterodyne light beating spectroscopy is used to study the propagation characteristics of these waves. The experimental procedure and the theory of the technique are discussed. The broadening of the scattered light spectra due to the instrumental effects and the theory of correction of the experimental data are shown. Different air-liquid, liquid-liquid and polarised mercury electrolyte interfaces are studied. The interfacial tension and the viscosity of these interfaces are evaluated from the frequency and the damping constant of the capillary waves. The results are shown to agree well with the reported values with the exception of the viscosity of mercury. This anomalous behaviour is discussed in detail in the last chapter.
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Published date: 1981
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Local EPrints ID: 459608
URI: http://eprints.soton.ac.uk/id/eprint/459608
PURE UUID: b2b5bfd7-f74f-4fe0-adc8-630bc046f9bf
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Date deposited: 04 Jul 2022 17:15
Last modified: 04 Jul 2022 17:15
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Author:
Siyambalagoda Arachige Gamini Ranjith Karunathilaka
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