Design of acoustic/elastic phase gradient metasurfaces: principles, functional elements, tunability, and coding

AL Chen, YS Wang, YF Wang… - Applied …, 2022 - asmedigitalcollection.asme.org
Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of
subwavelength thickness and show remarkable ability of acoustic/elastic wave …

Meta-ring for enhancing emission efficiency of omnidirectional SH waves

HJ Kim, CI Park, K Kim, YY Kim - International Journal of Mechanical …, 2023 - Elsevier
The intensity of a wave emitted by a transducer affects its performance critically, especially
when the emitted wave is omnidirectional. However, the development of omnidirectional …

Design and micromanufacturing technologies of focused piezoelectric ultrasound transducers for biomedical applications

X Bai, D Wang, L Zhen, M Cui, J Liu… - … Journal of Extreme …, 2024 - iopscience.iop.org
Piezoelectric ultrasonic transducers have shown great potential in biomedical applications
due to their high acoustic-to-electric conversion efficiency and large power capacity. The …

Achromatic needle focusing with superresolution enabled by a ring-shaped acoustic metalens

L Fan, J Mei - Physical Review Applied, 2023 - APS
Superresolution metalenses that can realize a far-field needle focusing effect are highly
desired in various applications, such as medical diagnosing, ultrasonic detection, and …

Broadband and high-numerical-aperture sharp focusing for waterborne sound with metagrating-based lens

J Mei, L Fan, X Hong - New Journal of Physics, 2022 - iopscience.iop.org
Metalens with broadband and high-efficiency focusing functionality is desired in various
underwater acoustic applications such as sonar and oceanography. Here we design and …

[HTML][HTML] 声学/弹性相位梯度超表面设计: 原理, 功能基元, 可调和编码

陈阿丽, 汪越胜, 王艳锋, 周红涛, 袁思敏 - 力学进展, 2022 - lxjz.cstam.org.cn
声学/弹性超表面是一类亚波长厚度的二维超材料, 具有很强的声波/弹性波操控能力,
在声学成像, 通信, 隐身, 伪装, 振动/噪声控制, 能量收集, 无损检测等领域具有潜在的应用 …

Advanced Ultrasound Energy Transfer Technologies using Metamaterial Structures

IM Imani, HS Kim, J Shin, DG Lee, J Park… - Advanced …, 2024 - Wiley Online Library
Wireless energy transfer (WET) based on ultrasound‐driven generators with enormous
beneficial functions, is technologically in progress by the valuation of ultrasonic …

[HTML][HTML] Airborne ultrasound focusing aperture with binary amplitude mask over planar ultrasound emissions

M Kitano, K Hasegawa - Journal of Applied Physics, 2023 - pubs.aip.org
Phased arrays of airborne ultrasound transducers are widely utilized as a key technology to
achieve mid-air convergence of intense ultrasound, which is applied to a variety of systems …

Influence of the prestressed layer on spherical transducer in sound radiation performance

X Zhang, X Lin, R Guo, C Yang, H Zhao… - Journal of Advanced …, 2022 - World Scientific
To improve the acoustic radiation performance of the spherical transducer, a prestressed
layer is formed in the transducer through fiber winding. The influence of the prestressed …

[HTML][HTML] Distinct thermal effect on biological tissues using subwavelength ultrasound metalens at megahertz

Y Zheng, C Li, C Zhang, J He, X Jiang, D Ta - Iscience, 2023 - cell.com
Ultrasound focusing plays an important role in biomedical therapy and diagnosis. Acoustic
metalens has showcased remarkable focusing performance but yet to be implemented to the …