Nature Communications (Feb 2020)

Dispersion tuning and route reconfiguration of acoustic waves in valley topological phononic crystals

  • Zhenhua Tian,
  • Chen Shen,
  • Junfei Li,
  • Eric Reit,
  • Hunter Bachman,
  • Joshua E. S. Socolar,
  • Steven A. Cummer,
  • Tony Jun Huang

DOI
https://doi.org/10.1038/s41467-020-14553-0
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 10

Abstract

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The valley degree of freedom gives additional flexibility to tunable phononic and photonic crystals. Here, the authors realise a honeycomb phononic structure where both the size of the cavities and of the air channel can be actively tuned, allowing several functionalities in a broad frequency range.