Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid
This work proposes a method for actively constructing acoustic metasurface (AMS) based on the split hollow cuboid (SHC) structure of local resonance, with the designed AMS flexibly manipulating the direction of reflected acoustic waves at a given frequency range. The AMS was obtained by precisely ad...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/1189 |
| _version_ | 1797486522582171648 |
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| author | Limei Hao Xi Chen Xiaole Yan Yujia Li Li Zhang You Xie Shaofang Pang Zhi Chen |
| author_facet | Limei Hao Xi Chen Xiaole Yan Yujia Li Li Zhang You Xie Shaofang Pang Zhi Chen |
| author_sort | Limei Hao |
| collection | DOAJ |
| description | This work proposes a method for actively constructing acoustic metasurface (AMS) based on the split hollow cuboid (SHC) structure of local resonance, with the designed AMS flexibly manipulating the direction of reflected acoustic waves at a given frequency range. The AMS was obtained by precisely adjusting any one or two types of structural parameters of the SHC unit, which included the diameter of the split hole, the length, width, height, and shell thickness of the SHC. The simulation results showed that the AMS can flexibly manipulate the direction of the reflected acoustic waves, and the anomalous reflection angle obeys the generalized Snell’s law. Furthermore, among the five structural parameters, the AMS’s response frequency band is widest with the hole diameter and height, followed by the length and width, and narrowest with the shell thickness. It is worth noting that comprehensive manipulation of two parameters not only broadens the response frequency band, but also strengthens the effect of the anomalous reflection at the same response frequency. The subwavelength size of the AMS constructed with such a comprehensive method has the advantages of a small size, wide response band, simple preparation, and flexible modulation, and can be widely used in various fields, such as medical imaging and underwater stealth. |
| first_indexed | 2024-03-09T23:34:25Z |
| format | Article |
| id | doaj.art-ba896b7ab78d4fb0ae79fee451b16049 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:34:25Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ba896b7ab78d4fb0ae79fee451b160492023-11-23T17:03:47ZengMDPI AGMaterials1996-19442022-02-01153118910.3390/ma15031189Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow CuboidLimei Hao0Xi Chen1Xiaole Yan2Yujia Li3Li Zhang4You Xie5Shaofang Pang6Zhi Chen7Department of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Applied Physics, Northwestern Polytechnical University, Xi’an 710129, ChinaThis work proposes a method for actively constructing acoustic metasurface (AMS) based on the split hollow cuboid (SHC) structure of local resonance, with the designed AMS flexibly manipulating the direction of reflected acoustic waves at a given frequency range. The AMS was obtained by precisely adjusting any one or two types of structural parameters of the SHC unit, which included the diameter of the split hole, the length, width, height, and shell thickness of the SHC. The simulation results showed that the AMS can flexibly manipulate the direction of the reflected acoustic waves, and the anomalous reflection angle obeys the generalized Snell’s law. Furthermore, among the five structural parameters, the AMS’s response frequency band is widest with the hole diameter and height, followed by the length and width, and narrowest with the shell thickness. It is worth noting that comprehensive manipulation of two parameters not only broadens the response frequency band, but also strengthens the effect of the anomalous reflection at the same response frequency. The subwavelength size of the AMS constructed with such a comprehensive method has the advantages of a small size, wide response band, simple preparation, and flexible modulation, and can be widely used in various fields, such as medical imaging and underwater stealth.https://www.mdpi.com/1996-1944/15/3/1189acoustic metasurfaceanomalous reflectioncomprehensive manipulationultrathin |
| spellingShingle | Limei Hao Xi Chen Xiaole Yan Yujia Li Li Zhang You Xie Shaofang Pang Zhi Chen Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid Materials acoustic metasurface anomalous reflection comprehensive manipulation ultrathin |
| title | Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid |
| title_full | Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid |
| title_fullStr | Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid |
| title_full_unstemmed | Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid |
| title_short | Flexible Manipulation of the Reflected Wavefront Using Acoustic Metasurface with Split Hollow Cuboid |
| title_sort | flexible manipulation of the reflected wavefront using acoustic metasurface with split hollow cuboid |
| topic | acoustic metasurface anomalous reflection comprehensive manipulation ultrathin |
| url | https://www.mdpi.com/1996-1944/15/3/1189 |
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