Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces
Acoustic holography is an essential tool for controlling sound waves, generating highly complex and customizable sound fields, and enabling the visualization of sound fields. Based on acoustic sieve metasurfaces (ASMs), this paper proposes a theoretical design approach for zero-thickness broadband h...
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MDPI AG
2022-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/13/6453 |
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| author | Ye Tian Shuyu Zuo Qian Lv Guanjun Yin Jianzhong Guo |
| author_facet | Ye Tian Shuyu Zuo Qian Lv Guanjun Yin Jianzhong Guo |
| author_sort | Ye Tian |
| collection | DOAJ |
| description | Acoustic holography is an essential tool for controlling sound waves, generating highly complex and customizable sound fields, and enabling the visualization of sound fields. Based on acoustic sieve metasurfaces (ASMs), this paper proposes a theoretical design approach for zero-thickness broadband holograms. The ASM is a zero-thickness rigid screen with a large number of small holes that allow sound waves to pass through and produce the desired real image in the target plane. The hole arrangement rules are determined using a genetic algorithm and the Rayleigh–Sommerfeld theory. Because the wave from a hole has no extra phase or amplitude modulation, the intractable modulation dispersion can be physically avoided, allowing the proposed ASM-based hologram to potentially function in any frequency band as long as the condition of paraxial approximation is satisfied. Using a numerical simulation based on the combination of the finite element method (FEM) and the boundary element method (BEM), this research achieves broadband holographic imaging with a good effect. The proposed theoretical zero-thickness broadband hologram may provide new possibilities for acoustic holography applications. |
| first_indexed | 2024-03-09T22:08:37Z |
| format | Article |
| id | doaj.art-91633186628649d9a4a57f5ebdff1478 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:08:37Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-91633186628649d9a4a57f5ebdff14782023-11-23T19:36:55ZengMDPI AGApplied Sciences2076-34172022-06-011213645310.3390/app12136453Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve MetasurfacesYe Tian0Shuyu Zuo1Qian Lv2Guanjun Yin3Jianzhong Guo4Key Laboratory of Ultrasound of Shaanxi Province, School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, ChinaCollege of Science, Henan University of Technology, Zhengzhou 450001, ChinaKey Laboratory of Ultrasound of Shaanxi Province, School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, ChinaKey Laboratory of Ultrasound of Shaanxi Province, School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, ChinaKey Laboratory of Ultrasound of Shaanxi Province, School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, ChinaAcoustic holography is an essential tool for controlling sound waves, generating highly complex and customizable sound fields, and enabling the visualization of sound fields. Based on acoustic sieve metasurfaces (ASMs), this paper proposes a theoretical design approach for zero-thickness broadband holograms. The ASM is a zero-thickness rigid screen with a large number of small holes that allow sound waves to pass through and produce the desired real image in the target plane. The hole arrangement rules are determined using a genetic algorithm and the Rayleigh–Sommerfeld theory. Because the wave from a hole has no extra phase or amplitude modulation, the intractable modulation dispersion can be physically avoided, allowing the proposed ASM-based hologram to potentially function in any frequency band as long as the condition of paraxial approximation is satisfied. Using a numerical simulation based on the combination of the finite element method (FEM) and the boundary element method (BEM), this research achieves broadband holographic imaging with a good effect. The proposed theoretical zero-thickness broadband hologram may provide new possibilities for acoustic holography applications.https://www.mdpi.com/2076-3417/12/13/6453acoustic holographymetasurfacebroadband hologramultrathin hologramsound field control |
| spellingShingle | Ye Tian Shuyu Zuo Qian Lv Guanjun Yin Jianzhong Guo Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces Applied Sciences acoustic holography metasurface broadband hologram ultrathin hologram sound field control |
| title | Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces |
| title_full | Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces |
| title_fullStr | Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces |
| title_full_unstemmed | Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces |
| title_short | Theoretical Zero-Thickness Broadband Holograms Based on Acoustic Sieve Metasurfaces |
| title_sort | theoretical zero thickness broadband holograms based on acoustic sieve metasurfaces |
| topic | acoustic holography metasurface broadband hologram ultrathin hologram sound field control |
| url | https://www.mdpi.com/2076-3417/12/13/6453 |
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