Presentation
3 October 2022 Improving topological boundary states in photonic metasurfaces via profile engineering
Anton Vakulenko, Svetlana Kiriushechkina, Daria A. Smirnova, Yuma Kawaguchi, Kai Chen, Sriram Guddala, Filipp Komissarenko, Monica S. Allen, Jeffery W. Allen, Alexander B. Khanikaev
Author Affiliations +
Abstract
In this work we propose a method to achieve improved topological edge sates by engineering an optimal profile of the transition at the boundary between topological and trivial domains. From experiment and simulation results we confirmed that the quality factor of edge state for smooth transition profile can be increased by more than an order compared to the edge state of a conventional step profile. At the same time the modes retained their topological resilience, which, when combined with the reduced radiative leakage, enables robust photonic transport over long distances even above the light line.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anton Vakulenko, Svetlana Kiriushechkina, Daria A. Smirnova, Yuma Kawaguchi, Kai Chen, Sriram Guddala, Filipp Komissarenko, Monica S. Allen, Jeffery W. Allen, and Alexander B. Khanikaev "Improving topological boundary states in photonic metasurfaces via profile engineering", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC121951S (3 October 2022); https://doi.org/10.1117/12.2633414
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KEYWORDS
Interfaces

Backscatter

Near infrared

Silicon

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