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Acoustic Skyrmionic Mode Coupling and Transferring in a Chain of Subwavelength Metastructures
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Acoustic Skyrmionic Mode Coupling and Transferring in a Chain of Subwavelength Metastructures
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Journal Article
Acoustic Skyrmionic Mode Coupling and Transferring in a Chain of Subwavelength Metastructures
2024
Overview
Skyrmions, a stable topological vectorial textures characteristic with skyrmionic number, hold promise for advanced applications in information storage and transmission. While the dynamic motion control of skyrmions has been realized with various techniques in magnetics and optics, the manipulation of acoustic skyrmion has not been done. Here, the propagation and control of acoustic skyrmion along a chain of metastructures are shown. In coupled acoustic resonators made with Archimedes spiral channel, the skyrmion hybridization is found giving rise to bonding and antibonding skyrmionic modes. Furthermore, it is experimentally observed that the skyrmionic mode of acoustic velocity field distribution can be robustly transferred covering a long distance and almost no distortion of the skyrmion textures in a chain of metastructures, even if a structure defect is introduced in the travel path. The proposed localized acoustic skyrmionic mode coupling and propagating is expected in future applications for manipulating acoustic information storage and transfer. The propagation and control of acoustic skyrmion along a chain of metastructures is proposed. The metastructure made with Archimedes spiral channel, the skyrmion hybridization is presented between neighboring structures. Then, it is experimentally observed that the skyrmionic mode of acoustic velocity field distribution can be robustly transferred covering a long distance, even if some structure defects are introduced in the travel path.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
Subject
