title: Anisotropy effects in the reflection of surface acoustic waves from obstacles.
abstract: The paper studies the difference between the reflection coefficients of a surface acoustic wave incident on a groove or strip along the inverse directions. This difference occurs because of the crystallographic anisotropy of the substrate and/or the asymmetry of the shape of the obstacle. The numerical computations are carried out by the finite element method. A perfectly matched layer is implemented to truncate the computational domain. Some general properties of the transmission and reflection coefficients of surface acoustic waves are also discussed.
authors.affiliation: Institute of Crystallography, Russian Academy of Sciences, Moscow, Russia. adar@ns.crys.ras.ru
authors.forename: Alexander
authors.initials: A
authors.lastname: Darinskii
authors.forename: Manfred
authors.initials: M
authors.lastname: Weihnacht
authors.forename: Hagen
authors.initials: H
authors.lastname: Schmidt