Cited by 394Topological Materials and PhenomenaMetamaterials and Metasurfaces ApplicationsAcoustic Wave Phenomena Research

Guiding Electromagnetic Waves around Sharp Corners: Topologically Protected Photonic Transport in Metawaveguides

Ma, Tzuhsuan, Khanikaev, Alexander B., Mousavi, S. Hossein, Shvets, Gennady·2015·Physical Review Letters

Abstract

The wave nature of radiation prevents its reflections-free propagation around sharp corners. We demonstrate that a simple photonic structure based on a periodic array of metallic cylinders attached to one of the two confining metal plates can emulate spin-orbit interaction through bianisotropy. Such a metawaveguide behaves as a photonic topological insulator with complete topological band gap. An interface between two such structures with opposite signs of the bianisotropy supports topologically protected surface waves, which can be guided without reflections along sharp bends of the interface.

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Crossref · 10.1103/physrevlett.114.127401

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34 of 34 references verified0 citation errors · 0 not checkable

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  • The overall results confirm that corners in the topological waveguides only have weak influences on transport of the edge states compared with conventional non-topological waveguides.

    “The overall results hence confirm that the corners in the topological waveguides only have weak influences on transport of the edge states, compared with conventional non-topological waveguides23.”
  • Currently proposed PTIs and STIs usually require covers to confine the waves in the vertical direction to prevent radiative leakage into free space.

    “However, currently proposed PTIs and STIs usually require covers to confine the waves in the vertical direction to prevent radiative leakage into free space20–25.”

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Authors
Ma, T., Khanikaev, A. B., Mousavi, S. H., & Shvets, G.
Affiliations
  • The University of Texas at Austin (US)
  • Queens College, CUNY (US)
Corresponding author
Shvets, Gennady
Venue
Physical Review Letters
Published
2015-03-23
Volume
114
Issue
12
Pages
127401-127401
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2333455177
Cited by
393
References
34
Citations by year
2026: 11 · 2025: 23 · 2024: 30 · 2023: 29 · 2022: 39 · 2021: 33 · 2020: 38 · 2019: 52 · 2018: 59 · 2017: 40 · 2016: 32 · 2015: 6 · 2014: 1
FWCI
23.21
Type
journal article
Language
en
Open access
closed
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Science Foundation (DMR-1120923, PHY-1415547)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Acoustic Wave Phenomena Research
Keywords
photonic topological insulators, bianisotropy, spin-orbit coupling, topological gap, electromagnetic wave propagation

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