Acoustic transmission enhancement through a periodically-structured stiff plate without any opening

Abstract

We report both experimentally and theoretically that the enhanced acoustic transmission can occur in the subwavelength region through a thin but stiff structured-plate without any opening. This exotic acoustic phenomenon is essentially distinct from the previous related studies originated from, either collectively or individually, the interaction of the incident wave with openings in previous structures. It is attributed to the structure-induced resonant excitation of the non-leaky Lamb modes that exist intrinsically in the uniform elastic plate. Our finding should have impact on ultrasonic applications.

11 pages, 4 figures

References in corpus (2)

• Colloquium: Light scattering by particle and hole arrays
• Diacritical study of light, electrons, and sound scattering by particles and holes

Cited by in corpus (6)

• Probing Weyl Physics with One-dimensional Sonic Crystals
• Valley-projected edge modes observed in underwater sonic crystals
• Acoustic-induced strong interaction between two periodically patterned elastic plates
• Broadband acoustic trapping of a particle by a soft plate with a periodic deep grating
• Highly asymmetric interaction forces induced by acoustic waves in coupled plate structures
• Observation of a Lamb band gap in a polymer waveguide with periodic cross-like cavities