Experimental Realization of Full Control of Reflected Waves with Subwavelength Acoustic Metasurfaces

2014/07/31 by Yong Li, Xue Jiang, Rui-qi Li +4 · 5 citations
Engineering · Materials Science · Physics and Astronomy · #Acoustic Wave Phenomena Research #Metamaterials and Metasurfaces Applications #Orbital Angular Momentum in Optics #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevapplied.2.064002

published as Phys.Rev.Applied 2 (2014) 064002

openalex publication_date 2014/12/03 · arxiv created 2014/12/26 · arxiv updated 2014/12/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/03

Abstract

Control of sound waves has been inspired by recent advances in using tailored metamaterials to manipulate light. In this study an acoustic metasurface is analytically designed and experimentally realized, with the potential to mold reflected wavefronts into desired forms--even directing nondiffracting beams along complex and nonparaxial trajectories. This level of control may open new avenues for ultrasound imaging, surgical ablation, and other applications.

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• Converting a Monopole Emission into a Dipole Using a Subwavelength Structure
• Efficient Asymmetric Transmission of Elastic Waves in Thin Plates with Lossless Metasurfaces
• Magnetic Snell's law and spin-wave fiber with Dzyaloshinskii-Moriya interaction

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