Du är här

The integrated extinction for broadband scattering of acoustic waves

Publiceringsår: 2007
Språk: Engelska
Sidor: 3206-3210
Publikation/Tidskrift/Serie: Journal of the Acoustical Society of America
Volym: 122
Nummer: 6
Dokumenttyp: Artikel

Sammanfattning

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.

Disputation

Nyckelord

  • Physics and Astronomy

Övrigt

Published
Yes
  • Electromagnetic theory
  • ISSN: 0001-4966

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen

LERU logo U21 logo