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Acoustic metamaterials

Nearly perfect sound absorbers

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Membrane-based acoustic resonators of subwavelength dimensions achieve nearly perfect acoustic absorption.

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Figure 1: A nearly perfect acoustic absorber1.

References

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Correspondence to Mathias Fink.

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Fink, M. Nearly perfect sound absorbers. Nature Mater 13, 848–849 (2014). https://doi.org/10.1038/nmat4067

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