Research / 2019 / Article / Fig 1

Research Article

Subwavelength Acoustic Valley-Hall Topological Insulators Using Soda Cans Honeycomb Lattices

Figure 1

(a) Schematic of the soda can in the simulations. Right panel: top view of the structure. (b) Measurement system of sound transmittance after inserting a soda can in the waveguide. Sound waves are excited at one side of the waveguide and are absorbed by acoustic sponge at the other side. (c) Simulated and experimental measured transmittance.