Multiple light-scattering probes of foam structure and dynamics

D. J. Durian, D. A. Weitz, D. J. Pine

Research output: Contribution to journalArticlepeer-review

Abstract

The structure and dynamics of three-dimensional foams are probed quantitatively by exploiting the strong multiple scattering of light that gives foams their familiar white color. Approximating the propagation of light as a diffusion process, transmission measurements provide a direct probe of the average bubble size. A model for dynamic light scattering is developed that can be used to interpret temporal fluctuations in the intensity of multiply scattered light. The results identify previously unrecognized internal dynamics of the foam bubbles. These light-scattering techniques are direct, noninvasive probes of bulk foams and therefore should find wide use in the study of their properties.

Original languageEnglish (US)
Pages (from-to)686-688
Number of pages3
JournalScience
Volume252
Issue number5006
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • General

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