Vectorial Acoustic Multiplexed Holography
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866913065258188800 |
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| author | Tian, Yuan Ge, Hao Zheng, Jiangpo Zhang, Xiujuan Lu, Ming-Hui Chen, Yan-Feng |
| author_facet | Tian, Yuan Ge, Hao Zheng, Jiangpo Zhang, Xiujuan Lu, Ming-Hui Chen, Yan-Feng |
| contents | Encoding more information into wave fields is a central goal in imaging, communication, and wave control. Optical holography benefits from polarization multiplexing, but acoustic holography remains largely limited to pressure-only encoding because sound in fluids lacks naturally independent vector channels. Here, we show that particle velocity can serve as a practical multiplexing degree of freedom despite the intrinsic pressure-velocity coupling governed by the acoustic Euler equation. We develop a physics-informed inverse-design approach that incorporates acoustic propagation and pressure-velocity coupling to create a binary metasurface for vector-field acoustic holographic multiplexing. Experiments demonstrate dual-channel multiplexing on the in-plane velocity components v_x and v_y, and further extend to three-channel multiplexing by incorporating pressure p, with high-fidelity reconstruction and low cross-talk. This approach adds a new information dimension without reducing spatial or spectral bandwidth and enables broader forms of wave-based information encoding and multiplexed wave control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_24414 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Vectorial Acoustic Multiplexed Holography Tian, Yuan Ge, Hao Zheng, Jiangpo Zhang, Xiujuan Lu, Ming-Hui Chen, Yan-Feng Applied Physics Optics Encoding more information into wave fields is a central goal in imaging, communication, and wave control. Optical holography benefits from polarization multiplexing, but acoustic holography remains largely limited to pressure-only encoding because sound in fluids lacks naturally independent vector channels. Here, we show that particle velocity can serve as a practical multiplexing degree of freedom despite the intrinsic pressure-velocity coupling governed by the acoustic Euler equation. We develop a physics-informed inverse-design approach that incorporates acoustic propagation and pressure-velocity coupling to create a binary metasurface for vector-field acoustic holographic multiplexing. Experiments demonstrate dual-channel multiplexing on the in-plane velocity components v_x and v_y, and further extend to three-channel multiplexing by incorporating pressure p, with high-fidelity reconstruction and low cross-talk. This approach adds a new information dimension without reducing spatial or spectral bandwidth and enables broader forms of wave-based information encoding and multiplexed wave control. |
| title | Vectorial Acoustic Multiplexed Holography |
| topic | Applied Physics Optics |
| url | https://arxiv.org/abs/2604.24414 |