Bifunctional acoustic metamaterial lens designed with coordinate transformation
We propose a method to design bifunctional acoustic lens using acoustic metamaterials that possess separate functions at different directions. The proposed bifunctional acoustic lens can be implemented in practice with subwavelength unit cells exhibiting effective anisotropic parameters. With this m...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
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AIP Publishing
2018
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| Online Access: | http://hdl.handle.net/1721.1/119152 https://orcid.org/0000-0001-7944-7646 https://orcid.org/0000-0001-5713-629X |
| _version_ | 1811098009092489216 |
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| author | Zhu, Rongrong Zheng, Bin Musa, Muhyiddeen Yahya Jing, Liqiao Yang, Yihao Wang, Huaping Dehdashti, Shahram Chen, Hongsheng Ma, Chu Fang, Xuanlai |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zhu, Rongrong Zheng, Bin Musa, Muhyiddeen Yahya Jing, Liqiao Yang, Yihao Wang, Huaping Dehdashti, Shahram Chen, Hongsheng Ma, Chu Fang, Xuanlai |
| author_sort | Zhu, Rongrong |
| collection | MIT |
| description | We propose a method to design bifunctional acoustic lens using acoustic metamaterials that possess separate functions at different directions. The proposed bifunctional acoustic lens can be implemented in practice with subwavelength unit cells exhibiting effective anisotropic parameters. With this methodology, we experimentally demonstrate an acoustic Luneburg-fisheye lens at operational frequencies from 6300 Hz to 7300 Hz. Additionally, a bifunctional acoustic square lens is proposed with different focal lengths for multi directions. This method paves the way to manipulating acoustic energy flows with functional lenses. |
| first_indexed | 2024-09-23T17:08:30Z |
| format | Article |
| id | mit-1721.1/119152 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:08:30Z |
| publishDate | 2018 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1191522022-09-29T23:58:46Z Bifunctional acoustic metamaterial lens designed with coordinate transformation Zhu, Rongrong Zheng, Bin Musa, Muhyiddeen Yahya Jing, Liqiao Yang, Yihao Wang, Huaping Dehdashti, Shahram Chen, Hongsheng Ma, Chu Fang, Xuanlai Massachusetts Institute of Technology. Department of Mechanical Engineering Ma, Chu Fang, Xuanlai We propose a method to design bifunctional acoustic lens using acoustic metamaterials that possess separate functions at different directions. The proposed bifunctional acoustic lens can be implemented in practice with subwavelength unit cells exhibiting effective anisotropic parameters. With this methodology, we experimentally demonstrate an acoustic Luneburg-fisheye lens at operational frequencies from 6300 Hz to 7300 Hz. Additionally, a bifunctional acoustic square lens is proposed with different focal lengths for multi directions. This method paves the way to manipulating acoustic energy flows with functional lenses. United States. National Oceanic and Atmospheric Administration (Massachusetts Institute of Technology. Sea Grant Program. Project 2015-R/RCM-41) 2018-11-16T18:19:22Z 2018-11-16T18:19:22Z 2017-03 2017-01 2018-11-15T18:46:52Z Article http://purl.org/eprint/type/JournalArticle 0003-6951 1077-3118 http://hdl.handle.net/1721.1/119152 Zhu, Rongrong, et al. “Bifunctional Acoustic Metamaterial Lens Designed with Coordinate Transformation.” Applied Physics Letters, vol. 110, no. 11, Mar. 2017, p. 113503. © 2017 Authors https://orcid.org/0000-0001-7944-7646 https://orcid.org/0000-0001-5713-629X http://dx.doi.org/10.1063/1.4978689 Applied Physics Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf AIP Publishing Other repository |
| spellingShingle | Zhu, Rongrong Zheng, Bin Musa, Muhyiddeen Yahya Jing, Liqiao Yang, Yihao Wang, Huaping Dehdashti, Shahram Chen, Hongsheng Ma, Chu Fang, Xuanlai Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title | Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title_full | Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title_fullStr | Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title_full_unstemmed | Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title_short | Bifunctional acoustic metamaterial lens designed with coordinate transformation |
| title_sort | bifunctional acoustic metamaterial lens designed with coordinate transformation |
| url | http://hdl.handle.net/1721.1/119152 https://orcid.org/0000-0001-7944-7646 https://orcid.org/0000-0001-5713-629X |
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