The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Metamaterial bricks and quantization of meta-surfaces
Open accessAbstract
Controlling acoustic fields is crucial in diverse applications such as loudspeaker design, ultrasound imaging and therapy or acoustic particle manipulation. The current approaches use fixed lenses or expensive phased arrays. Here, using a process of analogue-to-digital conversion and wavelet decomposition, we develop the notion of quantal meta-surfaces. The quanta here are small, pre-manufactured three-dimensional units—which we call metamaterial bricks—each encoding a specific phase delay. These bricks can be assembled into meta-surfaces to generate any diffraction-limited acoustic field. We apply this methodology to show experimental examples of acoustic focusing, steering and, after stacking single meta-surfaces into layers, the more complex field of an acoustic tractor beam. We demonstrate experimentally single-sided air-borne acoustic levitation using meta-layers at various bit-rates: from a 4-bit uniform to 3-bit non-uniform quantization in phase. This powerful methodology dramatically simplifies the design of acoustic devices and provides a key-step towards realizing spatial sound modulators.
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Cites
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Image coding using wavelet transform
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Controlling sound with acoustic metamaterials
Cummer, S. A., Christensen, J., & Alù, A. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.1 · Cited by 2,170
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Self-citationWavefront modulation and subwavelength diffractive acoustics with an acoustic metasurface
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Cited by
Additive manufacturing of metamaterials: A review
Askari, M., Hutchins, D. A., Thomas, P. J., Astolfi, L., Watson, R. L., Abdi, M., Ricci, M., Laureti, S., Nie, L., Freear, S., et al. (2020) · Additive Manufacturing · doi:10.1016/j.addma.2020.101562 · Cited by 470
Analogue computing with metamaterials
Zangeneh-Nejad, F., Sounas, D. L., Alù, A., & Fleury, R. (2020) · Nature Reviews Materials · doi:10.1038/s41578-020-00243-2 · Cited by 437
A volumetric display for visual, tactile and audio presentation using acoustic trapping
Hirayama, R., Martinez Plasencia, D., Masuda, N., & Subramanian, S. (2019) · Nature · doi:10.1038/s41586-019-1739-5 · Cited by 331
Self-citationA Review of Acoustic Impedance Matching Techniques for Piezoelectric Sensors and Transducers
Rathod, V. T. (2020) · Sensors · doi:10.3390/s20144051 · Cited by 328
Metadata
- Authors
- Memoli, G., Caleap, M., Asakawa, M., Sahoo, D. R., Drinkwater, B. W., & Subramanian, S.
- Venue
- Nature Communications
- Published
- 2017-02-27
- Volume
- 8
- Issue
- 1
- Pages
- 14608-14608
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2573099224
- Cited by
- 256
- References
- 27
- FWCI
- 11.99
- Type
- journal article
- Language
- en
- Open access
- gold
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- Memoli, G., Caleap, M., Asakawa, M., Sahoo, D. R., Drinkwater, B. W., & Subramanian, S. (2017). Metamaterial bricks and quantization of meta-surfaces. Nature Communications. https://doi.org/10.1038/ncomms14608
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