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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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| 發表在: | Sci Adv |
|---|---|
| Main Authors: | , , , , , , |
| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
American Association for the Advancement of Science
2020
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| 主題: | |
| 在線閱讀: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7852395/ https://ncbi.nlm.nih.gov/pubmed/33008907 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1126/sciadv.aba9876 |
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