Classical wave propagation in strongly scattering media

J.H. Page, H.P. Schriemer, I.P. Jones, Ping Sheng and D.A. Weitz

Physica A: Statistical Mechanics and its Applications, 1997, vol. 241, issue 1, 64-71

Abstract: The transport of classical waves in strongly scattering media is investigated using ultrasonic techniques, allowing us to measure both the ballistic and scattered components of the wave field. We find that the ballistic propagation is dramatically slowed down by scattering resonances, although the group velocity remains well-defined. The propagation of the scattered waves is also strongly affected by resonant scattering, and is shown to be well described by using the diffusion approximation. A model based on the generalized coherent potential approximation gives a quantitative explanation of the experimental data.

Keywords: Wave propagation; Inhomogeneous media; Group velocity; Multiple scattering; Diffusion of sound (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:241:y:1997:i:1:p:64-71

DOI: 10.1016/S0378-4371(97)00060-5

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