Coding acoustic metasurfaces

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August undefined, 2024

WebJun 29, 2024 · The manipulation of acoustic waves plays an important role in a wide range of applications. Currently, acoustic wave manipulation typically relies on either acoustic metasurfaces or phased array transducers. The elements of metasurfaces are designed and optimized for a target frequency, which thus limits their bandwidth. Phased array … Web1 day ago · Bubble-type coding metasurfaces for broadband deep subwavelength underwater acoustic manipulations. Ping Han 1, Zhan-Dong Huang 2, Hao-Wen Dong 3 …

Bubble-type coding metasurfaces for broadband deep …

WebDec 18, 2024 · To overcome these shortcomings, here we propose frequency-selected bifunctional coding acoustic metasurfaces. Dual-layer Helmholtz-like resonators are … Web2 days ago · Download Citation Bubble-type coding metasurfaces for broadband deep subwavelength underwater acoustic manipulations We construct a reflective broadband acoustic coding metasurface using ... netflix new streams

Efficient digital metasurfaces for full-space manipulation of acoustic …

Web摘要： Acoustic metasurfaces display unprecedented potential for their unique and flexible capabilities of wave front manipulations. Although rapid progress and significant developments have been achieved in this field, it still remains a significant challenge to obtain an acoustic metasurface that can perform different functions in three-dimensional … WebMay 13, 2024 · Abstract. Acoustic focusing has been widely applied in biological and industrial fields. In this work, a coding acoustic metasurface consisting of two kinds of … WebAug 19, 2024 · In this work, we present a type of binary metasurface (BM) to generate an acoustic Airy beam in air. Two coding bits, a rectangular cavity (bit “0”) and a waveguide with seven Helmholtz resonators (bit “1”), are adopted to construct the acoustic structure, which offers degrees of freedom to manipulate the transmitted field. netflix new thrillers and dramas

Coding Acoustic Metasurfaces - Xie - 2024 - Advanced …

Coding acoustic metasurfaces for tunable focusing in three …

WebApr 9, 2024 · The dimensions of the breast are 615 × 752 × 495 pixels (2D cross-section dimensions: 615 × 752 pixels, for an effective physical size of breasts of 12.3 cm × 15.04 cm). The cross-section was chosen roughly at the midpoint of the breast along the z-axis. Values used for acoustic, thermal, and optical properties in the simulation are shown ... WebDec 18, 2024 · Recently, coding metasurfaces have been demonstrated to realize fascinating functions in acoustics, including far-field modulation, focusing, and vortex … itunes music family planWebOct 18, 2024 · Here, we propose a general theory of space-time modulated digital coding metasurfaces to obtain simultaneous manipulations of EM waves in both space and … itunes music editing software free

"WebApr 2, 2024 · Investigations on coding metasurfaces have been extended to acoustics [5], [19], [47], [48]. For instance, Xie et al. have proposed the concept of coding acoustic metasurface [19] and achieved the multifunctional modulation by shifting the transmitted phases on the surface in real time [49]. However, some existing coding AMs have … " - Coding acoustic metasurfaces

Coding acoustic metasurfaces

WebCoding acoustic metasurfaces can combine simple logical bits to acquire sophisticated functions in wave control. The acoustic logical bits can achieve a phase difference of exactly π and a perfect match of the amplitudes for the transmitted waves. By programming the coding sequences, acoustic metasurfaces with various functions, including ... WebOct 15, 2024 · Ya Zhang, Boyang Xie, Wenwei Liu, Hua Cheng, Shuqi Chen*, and Jianguo Tian, “Anomalous reflection and vortex beam generation by multi-bit coding acoustic metasurfaces,” Appl. Phys. Lett. 114, 091905 (2024).

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WebMar 8, 2024 · Here, we propose the multi-bit coding acoustic metasurfaces to manipulate the reflection of acoustic waves. Theoretical predictions and experimental results are given to demonstrate the functions of wave …

WebJan 11, 2024 · Here, the authors report an approach for creating various acoustic wavefronts in free space by using soft gradient-index porous metasurfaces. These flat lenses generate steered planar, focused ... WebOct 17, 2024 · By using a phase difference of precisely π, coding acoustic metasurfaces are experimentally demonstrated. Google Scholar Bok, E. et al. Metasurface for water-to …

WebCoding acoustic metasurfaces can combine simple logical bits to acquire sophisticated functions in wave control. The acoustic logical bits can achieve a phase difference of … WebHere, we design an acoustic coding metasurface (ACM) lens to achieve a broadband tunable focusing in air. This simple ACM lens only includes two coding bits: a space-folding structure is designed to act as the bit '1' and an air unit …

WebAcoustic focusing has been widely applied in biological and industrial fields. In this work, a coding acoustic metasurface consisting of two kinds of hexagonal coding bits is designed. Using the metasurface, acoustic focusing can be implemented in three-dimensional space.

WebDec 6, 2016 · To address the frequency-based coding capability, in this paper we report broadband acoustic coding metasurfaces (BACMs) whose units are designed by … netflix new tariffWebNov 18, 2024 · Coding acoustic metasurfaces can combine simple logical bits to acquire sophisticated functions in wave control. The acoustic logical bits can achieve a phase difference of exactly π and a ... netflix new thrillersWebMay 13, 2024 · We present an acoustic metamaterial (AMM) consisting of a dumbbell-shaped split hollow sphere (DSSHS). Transmission results of experiments and simulations both presented a transmitted dip at the resonant frequency of AMM, which demonstrated its negative modulus property. As the two split holes in the DSSHS had strong coupling … netflix new tubeWebIn this paper, we present a novel acoustic coding metasurface structure for underwater sound scattering reduction based on pentamode metamaterials. The metasurface is composed of two types of hexagonal pentamode unit cells with phase responses of 0 and π respectively. The units are arranged in random 1-bit coding sequence to achieve low ... netflix new tombstone episodesWebApr 1, 2024 · As an analogue of the binary acoustic metasurfaces (BAMs), the sparse binary elastic metasurfaces (SBEMs) which consist of two different coding units with sparse arrangement is designed. A systematic design method based on topology optimization (TO) is developed to search the coding units. netflix new trending series 2022WebWu, Dawei. Acoustic focusing has been widely applied in biological and industrial fields. In this work, a coding acoustic metasurface consisting of two kinds of hexagonal coding … netflix new thrillers 2022WebJan 1, 2024 · By introducing the addition principle into the design theory and encoding different metasurfaces, the corresponding scattered beams can be superimposed to achieve the arbitrary modulation of the... netflix new tv shows 2023