Results 51 to 60 of about 9,256 (180)
Recent progress in acoustic metamaterials and active piezoelectric acoustic metamaterials - A review
Applied Materials Today, 2022 Abstract Acoustic metamaterials, structured to produce anomalous reflection and refraction indices that are not found in conventional materials, are gaining prominence in engineering applications. These artificial structures have enabled novel functionalities, such as negative effective properties, extraordinary wave manipulation, enhanced sound ...
Ji, G, Huber, J
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Constant-pressure sound waves in non-Hermitian disordered media
, 2018 When waves impinge on a disordered material they are back-scattered and form a highly complex interference pattern. Suppressing any such distortions in the free propagation of a wave is a challenging task with many applications in a number of different ...
Brandstötter, Andre +5 more
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Localization of electric field distribution in graded core-shell metamaterials
, 2009 The local electric field distribution has been investigated in a core-shell cylindrical metamaterial structure under the illumination of a uniform incident optical field.
Wei, En-Bo, Yu, K. W.
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Tunable acoustic double negativity metamaterial [PDF]
Scientific Reports, 2012 Man-made composite materials called "metamaterials" allow for the creation of unusual wave propagation behavior. Acoustic and elastic metamaterials in particular, can pave the way for the full control of sound in realizing cloaks of invisibility, perfect lenses and much more.
Liang, Zixian +3 more
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Review of Underwater Acoustic Communication Based on Metamaterials
水下无人系统学报In recent years, acoustic metamaterials, as a sort of novel artificial composite materials, have demonstrated the ability to surpass the limitations of traditional materials through their exceptional acoustic parameter manipulation capabilities.
Ping ZHOU, Han JIA, Jun YANG
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Relaxed micromorphic model of transient wave propagation in anisotropic band-gap metastructures
, 2018 In this paper, we show that the transient waveforms arising from several localised pulses in a micro-structured material can be reproduced by a corresponding generalised continuum of the relaxed micromorphic type.
Aivaliotis, Alexios +5 more
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Ultra-Low-Frequency Acoustic Black Hole Radial Elastic Metamaterials
Applied Sciences, 2023 In this paper, we propose an acoustic black hole radial elastic metamaterial (AREM). Through the study of its dispersion relations, it is found that, compared with the conventional elastic metamaterial, the AREM gathers energy at the tip of the black ...
Lixia Li, Haiteng Hu, Xiaolan Wu
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, 2015 We consider a simple configuration for realizing one-dimensional slow-light metamaterials with large bandwidth-delay products using stub-shaped Fabry-Perot resonators as building blocks.
Bozhevolnyi, Sergey I., Raza, Søren
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Research Progress on Thin-Walled Sound Insulation Metamaterial Structures
AcousticsAcoustic metamaterials (AMs) composed of periodic artificial structures have extraordinary sound wave manipulation capabilities compared with traditional acoustic materials, and they have attracted widespread research attention.
Yumei Zhang +7 more
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Seismic Waveguide of Metamaterials
, 2012 We have developed a new method of an earthquake-resistant design to support conventional aseismic designs using acoustic metamaterials. We suggest a simple and practical method to reduce the amplitude of a seismic wave exponentially.
Beranek L. L. +4 more
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