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The integrated extinction for broadband scattering of acoustic waves

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Author

Summary, in English

In this paper, physical bounds on scattering of acoustic waves over a frequency interval are discussed based on the holomorphic properties of the scattering amplitude in the forward direction. The result is given by a dispersion relation for the extinction cross section which yields an upper bound on the product of the extinction cross section and the associated bandwidth of any frequency interval. The upper bound is shown to depend only on the geometry and the material properties of the scatterer in the static or low-frequency limit. The results are exemplified by permeable and impermeable scatterers with homogeneous and isotropic material properties.

Publishing year

2007

Language

English

Pages

3206-3210

Publication/Series

Journal of the Acoustical Society of America

Volume

122

Issue

6

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Research group

  • Electromagnetic theory

ISBN/ISSN/Other

  • ISSN: 1520-8524