Observation of topological edge modes in a quasi-periodic acoustic waveguide

ORAL

Abstract

We present a system of acoustic waveguide generated by a simple quasi-periodic patterning without any additional fine-tuning. The system presents topological edge modes. The waveguides are characterized experimentally by standard acoustic measurements, and via a finite element approach utilizing COMSOL Multiphysics. The experimental results and simulations confirm the existence of topological edge modes in these gaps.

*All authors acknowledge the support from W.M. Keck Foundation

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Presenters

  • Wenting Cheng

    • New Jersey Institute of Technology

Authors

  • Wenting Cheng

    • New Jersey Institute of Technology

  • David J. Apigo

    • New Jersey Institute of Technology

  • kyle dobiszewski

    • New Jersey Institute of Technology

  • Emil Prodan

    • Department of Physics, Yeshiva University
    • physics, Yeshiva University
    • Yeshiva University

  • Camelia Prodan

    • physics, New Jersey Institute of Tech
    • New Jersey Institute of Technology