Enhanced backscattering: the universal wave phenomenon

Author

Barabanenkov, Yu.N. ; Kravtsov, Yu.A. ; Ozrin, V.D. ; Saichev, A.I.

Author_Institution

Center for Surface & Vacuum Studies, Moscow, USSR

Volume

79

Issue

10

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1367

Lastpage

1370

Abstract

Backscattering enhancement is discussed as a universal wave phenomenon inherent to waves of whatever physical nature: electromagnetic, acoustic, spin, etc. This phenomenon arises due to multichannel wave propagation from a source to a scatterer and back and may be observed in the vicinity of the source because of mutual coherence of waves passing in opposite directions along identical (coherent) channels. Backscattering enhancement may be revealed when the wave field is scattered: by a system of chaotically distributed scatterers or by a system of inhomogeneities; by a body embedded in a turbulent medium; by a single body placed near an interface or within a waveguide (randomness of body position is assumed); by a body of complex form or a system of several scatterers randomly oriented in space; by a rough surface; and by many other physical systems. Possible practical applications of these effects are analyzed

Keywords

acoustic wave propagation; acoustic wave scattering; backscatter; electromagnetic wave propagation; electromagnetic wave scattering; spin waves; wave propagation; EM waves; acoustic waves; body position randomness; chaotically distributed scatterers; enhanced backscattering; inhomogeneities; interface; multichannel wave propagation; mutual coherence; randomly oriented scatterers; rough surface; scattered wave field; single body; spin waves; turbulent medium; universal wave phenomenon; waveguide; Acoustic propagation; Acoustic scattering; Acoustic waves; Backscatter; Chaos; Coherence; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Surface waves;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.104211

Filename

104211