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Sound vortex diffraction via topological charge in phase gradient metagratings

Wave fields with orbital angular momentum (OAM) have been widely investigated in metasurfaces. By engineering acoustic metasurfaces with phase gradient elements, phase twisting is commonly used to obtain acoustic OAM. However, it has limited ability to manipulate sound vortices, and a more powerful...

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Detalles Bibliográficos
Autores principales: Fu, Yangyang, Shen, Chen, Zhu, Xiaohui, Li, Junfei, Liu, Youwen, Cummer, Steven A., Xu, Yadong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7852395/
https://www.ncbi.nlm.nih.gov/pubmed/33008907
http://dx.doi.org/10.1126/sciadv.aba9876