Acoustic scattering by a wire deposited on a planar surface

A. Khelif; B. Djafari Rouhani; L. Dobrzynski

doi:10.1016/0039-6028(95)01323-7

Acoustic scattering by a wire deposited on a planar surface

A. Khelif, B. Djafari Rouhani^*, L. Dobrzynski

^*Corresponding author for this work

CNRS

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

An exact numerical method has been developed to calculate the Green's function and the dynamical properties of a wire of arbitrary shape near a planar surface. In this paper, we present the first applications of this formalism to the scattering of an incident acoustic plane wave by such a surface perturbation, considering the case of shear horizontal vibrations for an adsorbed wire having a parabolic section and being of the same nature as the substrate. The amplitude of the scattered wave shows a series of enhancement and lowering as a function of the frequency of the incident wave. The angular distribution of the scattered wave is dependent upon the frequency and the incident angle. We also present the local densities of states in the vicinity of this defect which contain well-defined resonances.

Original language	English
Pages (from-to)	1038-1042
Number of pages	5
Journal	Surface Science
Volume	352-354
DOIs	https://doi.org/10.1016/0039-6028(95)01323-7
Publication status	Published - 15 May 1996
Externally published	Yes

Keywords

Acoustic waves
Excitation spectra calculations
Green's function methods
Surface defects

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10.1016/0039-6028(95)01323-7

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title = "Acoustic scattering by a wire deposited on a planar surface",

abstract = "An exact numerical method has been developed to calculate the Green's function and the dynamical properties of a wire of arbitrary shape near a planar surface. In this paper, we present the first applications of this formalism to the scattering of an incident acoustic plane wave by such a surface perturbation, considering the case of shear horizontal vibrations for an adsorbed wire having a parabolic section and being of the same nature as the substrate. The amplitude of the scattered wave shows a series of enhancement and lowering as a function of the frequency of the incident wave. The angular distribution of the scattered wave is dependent upon the frequency and the incident angle. We also present the local densities of states in the vicinity of this defect which contain well-defined resonances.",

keywords = "Acoustic waves, Excitation spectra calculations, Green's function methods, Surface defects",

author = "A. Khelif and \{Djafari Rouhani\}, B. and L. Dobrzynski",

year = "1996",

month = may,

day = "15",

doi = "10.1016/0039-6028(95)01323-7",

language = "English",

volume = "352-354",

pages = "1038--1042",

journal = "Surface Science",

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TY - JOUR

T1 - Acoustic scattering by a wire deposited on a planar surface

AU - Khelif, A.

AU - Djafari Rouhani, B.

AU - Dobrzynski, L.

PY - 1996/5/15

Y1 - 1996/5/15

N2 - An exact numerical method has been developed to calculate the Green's function and the dynamical properties of a wire of arbitrary shape near a planar surface. In this paper, we present the first applications of this formalism to the scattering of an incident acoustic plane wave by such a surface perturbation, considering the case of shear horizontal vibrations for an adsorbed wire having a parabolic section and being of the same nature as the substrate. The amplitude of the scattered wave shows a series of enhancement and lowering as a function of the frequency of the incident wave. The angular distribution of the scattered wave is dependent upon the frequency and the incident angle. We also present the local densities of states in the vicinity of this defect which contain well-defined resonances.

AB - An exact numerical method has been developed to calculate the Green's function and the dynamical properties of a wire of arbitrary shape near a planar surface. In this paper, we present the first applications of this formalism to the scattering of an incident acoustic plane wave by such a surface perturbation, considering the case of shear horizontal vibrations for an adsorbed wire having a parabolic section and being of the same nature as the substrate. The amplitude of the scattered wave shows a series of enhancement and lowering as a function of the frequency of the incident wave. The angular distribution of the scattered wave is dependent upon the frequency and the incident angle. We also present the local densities of states in the vicinity of this defect which contain well-defined resonances.

KW - Acoustic waves

KW - Excitation spectra calculations

KW - Green's function methods

KW - Surface defects

UR - https://www.scopus.com/pages/publications/0030148842

U2 - 10.1016/0039-6028(95)01323-7

DO - 10.1016/0039-6028(95)01323-7

M3 - Article

AN - SCOPUS:0030148842

SN - 0039-6028

VL - 352-354

SP - 1038

EP - 1042

JO - Surface Science

JF - Surface Science

ER -

Acoustic scattering by a wire deposited on a planar surface

Abstract

Keywords

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