[10p-Z13-1~8] Leading edge of phonon engineering

[10p-Z13-6] Design of Topological Acoustic Waveguide and Non-reciprocal Wave Propagation using Phononic Structures

〇Kenji Tsuruta¹ (1.Okayama Univ.)

Keywords:phononic crystal, acoustic topological insulator, non-reciprocal wave propagation

Based on the band design of the phononic crystal, consisting of the periodic arrangement of the dissimilar material, we report the design and characteristic evaluation of the topological acoustic waveguide for the efficient wave propagation with a simple structural unit which is comparatively robust and easy to fabricate. We also report that the non-reciprocity of the Lamb wave propagation in thin plates can designed and assessed based on the band structure of heterophononic structures.