Theoretical analysis of damping effects of SAW at solid/fluid interfaces

Author

Ballandras, S. ; Reinhardt, A. ; Khelif, A. ; Wilm, M. ; Laude, V. ; Daniau, W. ; Blondeau-Pâtissier, V. ; Boireau, W.

Author_Institution

Univ. de Franche-Comte, Besancon, France

fYear

2003

fDate

4-8 May 2003

Firstpage

907

Lastpage

910

Abstract

A theoretical of ideal and viscous fluid media is proposed to address the problem of modelling damping effects of surface acoustic waves (SAW) at the interface between fluids and solids. It is based on the Fahmy-Adler eigenvalue representation of the elastic propagation problem, extended to provide the Green´s function of the considered media. It takes advantage of previous efforts developed to numerically stabilize the Green´s function computation process. The influence of acoustic radiation and viscosity on different kind of surface waves on various substrate is reported and discussed.

Keywords

Green´s function methods; acoustic wave absorption; acoustic wave effects; acoustic wave propagation; damping; lithium compounds; surface waves (fluid); viscosity; water; Fahmy-Adler eigenvalue representation; Green´s function; H₂O-LiTaO₃; SAW; acoustic radiation; damping effects; elastic propagation problem; solid-liquid interfaces; surface acoustic wave; surface waves; viscosity; viscous fluid media; Acoustic devices; Acoustic propagation; Acoustic waves; Compressive stress; Damping; Polarization; Solids; Surface acoustic wave devices; Surface acoustic waves; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International

ISSN

1075-6787

Print_ISBN

0-7803-7688-9

Type

conf

DOI

10.1109/FREQ.2003.1275211

Filename

1275211