Locally resonant sonic materials

Z. Liu, X. Zhang, Y. Mao, Y. Y. Zhu, Z. Yang, C. T. Chan, P. Sheng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4373 Scopus citations


We have fabricated sonic crystals, based on the idea of localized resonant structures, that exhibit spectral gaps with a lattice constant two orders of magnitude smaller than the relevant wavelength. Disordered composites made from such localized resonant structures behave as a material with effective negative elastic constants and a total wave reflector within certain tunable sonic frequency ranges. A 2-centimeter slab of this composite material is shown to break the conventional mass-density law of sound transmission by one or more orders of magnitude at 400 hertz.

Original languageEnglish (US)
Pages (from-to)1734-1736
Number of pages3
Issue number5485
StatePublished - Sep 8 2000
Externally publishedYes

Bibliographical note

Funding Information:
This work is supported in part by the Hong Kong RGC Grant HKUST6145/99P.

ASJC Scopus subject areas

  • General


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