Acoustically induced transparency by using concentric spherical shells with coaxial aperture array

An acoustically induced transparency device based on Fano resonance was designed and fabricated. The proposed design ensures excitation and interference of two associated resonance modes by locating the concentric shells with apertures. The inserted shell generates the destructive interference resonance to the original resonance. Numerical simulations and experiments demonstrate that this designed structure could generate Fano resonance and can be used to generate acoustically induced transparency with potential applications in nonlinear enhancement devices and sensing.