Ultra-open acoustic metamaterial silencer based on Fano-like interference

  title={Ultra-open acoustic metamaterial silencer based on Fano-like interference},
  author={Reza Ghaffarivardavagh and Jacob Nikolajczyk and Stephan W. Anderson and Xin Zhang},
  journal={Physical Review B},
Recently, with advances in acoustic metamaterial science, the possibility of sound attenuation using subwavelength structures, while maintaining permeability to air, has been demonstrated. However, the ongoing challenge addressed herein is the fact that among such air-permeable structures to date, the open area represents only small fraction of the overall area of the material. In the presented paper in order to address this challenge, we first demonstrate that a transversely placed bilayer… 

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