Acoustic geometric-phase meta-array
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DOI码：10.1088/1367-2630/ac33f2
发表刊物：New Journal of Physics
关键字：Acoustics waves; Geometric phase; MetaLens; Metasurface; Optical spins; Orbital angular momentum; Spin degrees of freedom; Spin state; Topological charges; Vortex beams
摘要：Metasurfaces based on geometric phase acquired from the conversion of the optical spin states provide a robust control over the wavefront of light, and have been widely employed for construction of various types of functional metasurface devices. However, this powerful approach cannot be readily transferred to the manipulation of acoustic waves because acoustic waves do not possess the spin degree of freedom. Here, we propose the concept of acoustic geometric-phase meta-array by leveraging the conversion of orbital angular momentum of acoustic waves, where well-defined geometric-phases can be attained through versatile topological charge conversion processes. This work extends the concept of geometric-phase metasurface from optics to acoustics, and provides a new route for acoustic wave control.
合写作者：Zhaoxian Su,Yong Zeng,Yongtian Wang
第一作者：Bingyi Liu
论文类型：期刊论文
通讯作者：Lingling Huang,Shuang Zhang
论文编号：000720092700001
学科门类：理学
文献类型：J
卷号：23
期号：11
页面范围：113026
字数：3000
ISSN号：ISSN 1367-2630
是否译文：否
发表时间：2021-11-18
收录刊物：SCI
发布期刊链接：https://iopscience.iop.org/article/10.1088/1367-2630/ac33f2