Reconfigurable coding acoustic meta-lens based on helical metamaterials

•We propose a 3D reconfigurable binary coding meta-lens (RCML) based on helical metamaterials for acoustic waves in the air.•We suggest a set of design and reconfiguration methods for RCML, which can modify the focus with small-scale adjustment.•The RCML has accurate focus point control ability and...

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Veröffentlicht in:	Applied acoustics Jg. 211; S. 109538
Hauptverfasser:	Li, Xiang, Li, Jian, Huang, Xinjing
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Elsevier Ltd 01.08.2023
Schlagworte:	Acoustic coding meta-lens Acoustic metamaterial Helical structure Reconfigurable focusing Acoustic coding meta-lens Acoustic metamaterial Helical structure Reconfigurable focusing
ISSN:	0003-682X, 1872-910X
Online-Zugang:	Volltext
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