Highly efficient isolation of waterborne sound by an air-sealed meta-screen
Source abstract
Abstract
Underwater sound isolation has been a long-standing fundamental issue in industry and military fields. Starting from a simple theoretical model, here an air-sealed meta-screen is proposed to overcome this problem. Comparing with the sample without filling air, the effective impedance of the air-sealed one is greatly reduced and strikingly mismatch with water, accompanying another merit of low sound speed. Deeply suppressed sound transmission (∼50 dB) through such a meta-screen is observed experimentally over a wide range of ultrasonic frequencies and incident angles.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Acoustic Wave Phenomena Research · Underwater Acoustics Research · Speech and Audio Processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
1Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, China
2Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
Funding
the National Basic Research Program of China · National Natural Science Foundation of China
References (36)
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