Broadband metamaterial for nonresonant matching of acoustic waves

  title={Broadband metamaterial for nonresonant matching of acoustic waves},
  author={Giuseppe D’Aguanno and Khai Quang Le and R. Trimm and Andrea Al{\'u} and Nadia Mattiucci and Aidar de Freitas Mathias and N. Ak{\"o}zbek and Mark J. Bloemer},
  booktitle={Scientific reports},
Unity transmittance at an interface between bulk media is quite common for polarized electromagnetic waves incident at the Brewster angle, but it is rarely observed for sound waves at any angle of incidence. In the following, we theoretically and experimentally demonstrate an acoustic metamaterial possessing a Brewster-like angle that is completely transparent to sound waves over an ultra-broadband frequency range with >100% bandwidth. The metamaterial, consisting of a hard metal with… CONTINUE READING
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The authors declare no competing financial interests

  • J. Li, L. Fok, +18 authors writing the paper. Additional information Competing financ interests
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