APPLICATION OF THE FRESNEL ZONE CONCEPT TO THE DESCRIPTION OF DIFFRACTION AT A SCREEN IN A WAVE-GUIDE

Authors
VIROVLYANSKY AL KURIN VV LEBEDEV OV PRONCHATOVRUBTSOV NV SIMDYANKIN SI
Citation
Al. Virovlyansky et al., APPLICATION OF THE FRESNEL ZONE CONCEPT TO THE DESCRIPTION OF DIFFRACTION AT A SCREEN IN A WAVE-GUIDE, Acoustical physics, 43(1), 1997, pp. 24-33
Citations number
15
Categorie Soggetti
Acoustics
Journal title
Acoustical physics → ACNP
ISSN journal
10637710
Volume
43
Issue
1
Year of publication
1997
Pages
24 - 33
Database
ISI
SICI code
1063-7710(1997)43:1<24:AOTFZC>2.0.ZU;2-7
Abstract
We report experimental evidence obtained in physical modeling of the d iffraction of sound waves at a slit in an opaque screen inserted in a two-layered acoustical waveguide. This model demonstrates the efficien cy of the concept of normal mode Fresnel zones (analogs of the ordinar y ray Fresnel zones) in the analysis of mode structure distortions due to diffraction at large-scale inhomogeneities.