Abstract
Chiral materials are noncentrosymmetric due to handedness in their microstructures. The elastic field behavior in a chiral medium is readily described herein using the governing equations and constitutive relations for noncentrosymmetric, isotropic micropolar materials. Accordingly, linearly polarized longitudinal waves and left and right circularly polarized transverse waves are eigenstates for elastic waves in the chiral medium. Consequently, by using appropriate field representations along with prescribed boundary conditions, scattering characteristics at chiral interfaces can be readily determined. In this paper, transmission characteristics, i.e., magnitudes and rotation angles, of the chiral slab bounded by achiral media for normally incident transverse waves are the focus of this investigation. Simulation results show the Cotton effect in the magnitude and rotation angle curves, verifying theoretically the elastic activity of a chiral medium.
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