Coding acoustic metasurfaces
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 … Web2 days ago · Download Citation Bubble-type coding metasurfaces for broadband deep subwavelength underwater acoustic manipulations We construct a reflective …
Coding acoustic metasurfaces
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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 ... 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 ...
WebNov 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 ... WebMetasurfaces, as a class of emergent platforms, have shown enormous potentials in controlling classical waves. However, achieving simultaneous and dyn…
WebMay 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 … 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).
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 …
WebProgrammable metasurfaces have attracted significant attention in various applications such as radar and 6G communications, owing to their ability freely shape the far-field pattern. However, complex calculations and simulations are always required when designing specific far-field patterns, especially when irregular obstacles are outside the … mongols and silk roadWeb1 day ago · Bubble-type coding metasurfaces for broadband deep subwavelength underwater acoustic manipulations Ping Han1, Zhan-Dong Huang2, Hao-Wen Dong3 and Shengdong Zhao4 Accepted Manuscript online 12 April 2024 • © 2024 The Japan Society of Applied Physics What is an Accepted Manuscript? DOI 10.35848/1882-0786/accc6c … mongols ap world quizletWebHere, 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 … mongols and mughals crosswordWeb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 … mongols and russiaWebNov 25, 2024 · An acoustic Talbot coding metasurface. An array of 2 × 2 elements forms a basic unit cell of the coding metasurface. Each element can provide one of the 0, π/2, π, and 3π/2 phase-delay responses as one state in a 2-bit 4-digital states “00”, “01”, “10”, and “11.” With carefully designing each unit cell from four phase-mask ... mongols and religious toleranceWebOct 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 … mongols and turksWebApr 4, 2024 · In this paper, we propose a kind of reflection-type broadband acoustic coding metasurfaces (BACMs), which are composed of two square helical channels and the connected air cavity at the end of the channels. This helical-cavity coupled structure is selected as a logical unit “1,” the pure air hole is set as a logical unit “0,” and the ... mongols and the silk road