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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 21,
  • Issue 6,
  • pp. 061301-
  • (2023)

Photonic and phononic interface states based on sunflower-type crystals [Invited]

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Abstract

Interface states are widely applied in waveguide devices. However, previous studies failed to achieve photonic and phononic interface states independent of each other in the same crystal structure depending on the behavior of the crystal structure, i.e., photonic or phononic crystals, making the function of interface states single. In this study, straight-line and circular photonic and phononic interface states were realized independently in sunflower-type crystals. In addition, with a defect and a metal barrier, interface states could remain almost undamaged. The results have the potential to achieve multi-function devices and reduce the cost of engineering applications.

© 2023 Chinese Laser Press

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