Astolfi, L, Hutchins, DA, Thomas, PJ et al. (6 more authors) (2021) Holey-structured tungsten metamaterials for broadband ultrasonic sub-wavelength imaging in water. The Journal of the Acoustical Society of America, 150 (1). 74. ISSN 0001-4966
Abstract
Metamaterials exhibiting Fabry–Pérot resonances are shown to achieve ultrasonic imaging of a sub-wavelength aperture in water immersion across a broad bandwidth. Holey-structured metamaterials of different thickness were additively manufactured using a tungsten substrate and selective laser melting, tungsten being chosen so as to create a significant acoustic impedance mismatch with water. Both broadband metamaterial behavior and sub-wavelength imaging in water are demonstrated experimentally and validated with finite element simulations over the 200–300 kHz range.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Sep 2021 13:42 |
Last Modified: | 30 Sep 2021 13:42 |
Status: | Published |
Publisher: | Acoustical Society of America (ASA) |
Identification Number: | 10.1121/10.0005483 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:178619 |