The integrated extinction for broadband scattering of acoustic waves
Författare
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.
Publiceringsår
2007
Språk
Engelska
Sidor
3206-3210
Publikation/Tidskrift/Serie
Journal of the Acoustical Society of America
Volym
122
Issue
6
Dokumenttyp
Artikel i tidskrift
Förlag
American Institute of Physics (AIP)
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Forskningsgrupp
- Electromagnetic theory
ISBN/ISSN/Övrigt
- ISSN: 1520-8524