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Extraordinary acoustic transmission through ultrathin acoustic metamaterials by coiling up space
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10.1063/1.4817925
/content/aip/journal/apl/103/6/10.1063/1.4817925
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/6/10.1063/1.4817925
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the AM structure through coiling up space. Steel plate (gray areas) with width and length is immersed in air (white areas) to form zigzag channels ( ). (b) The simplified model with a straight path filled with an effective medium of high refractive index.

Image of FIG. 2.
FIG. 2.

The relative effective refraction index (red circles) and acoustic impedance (blue dots) of (a) the AM structure and (b) the simplified mode as a function of , respectively. (c) The power transmission spectra of the AM structure (black line) and the simplified model (red dots).

Image of FIG. 3.
FIG. 3.

The spatial distribution of the pressure amplitude field of (a) the AM structure and (b) the simplified model, respectively. Green arrows indicate the propagation directions.

Image of FIG. 4.
FIG. 4.

The power transmission spectrum of the AM structure as a function of the incident angle .

Image of FIG. 5.
FIG. 5.

The power transmission spectra of the AM structure as a function of (a) the width of the channels, (b) the thickness of the AM structure , and (c) the height of the channels , respectively.

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/content/aip/journal/apl/103/6/10.1063/1.4817925
2013-08-09
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Extraordinary acoustic transmission through ultrathin acoustic metamaterials by coiling up space
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/6/10.1063/1.4817925
10.1063/1.4817925
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