Cited by 1,648Topological Materials and PhenomenaMetamaterials and Metasurfaces ApplicationsQuantum Mechanics and Non-Hermitian Physics

Scheme for Achieving a Topological Photonic Crystal by Using Dielectric Material

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Wu, Long-Hua, Hu, Xiao·2015·Physical Review Letters

Abstract

We derive in the present work topological photonic states purely based on conventional dielectric material by deforming a honeycomb lattice of cylinders into a triangular lattice of cylinder hexagons. The photonic topology is associated with a pseudo-time-reversal (TR) symmetry constituted by the TR symmetry supported in general by Maxwell equations and the C_{6} crystal symmetry upon design, which renders the Kramers doubling in the present photonic system. It is shown explicitly for the transverse magnetic mode that the role of pseudospin is played by the angular momentum of the wave function of the out-of-plane electric field. We solve Maxwell equations and demonstrate the new photonic topology by revealing pseudospin-resolved Berry curvatures of photonic bands and helical edge states characterized by Poynting vectors.

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Crossref · 10.1103/physrevlett.114.223901

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  • 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.”
  • Such demonstration may also benefit photonic technologies by providing ways to control photon spins and pseudospins in topologically non-trivial ways.

    “Such demonstration may also benefit photonic technologies by providing ways to control photon spins and pseudospins in topologically non-trivial ways [41].”

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Authors
Wu, L.-H., & Hu, X.
Affiliations
University of Tsukuba (JP)
Corresponding author
Hu, Xiao
Venue
Physical Review Letters
Published
2015-06-03
Volume
114
Issue
22
Pages
223901-223901
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W41153617
Cited by
1,648
References
6
Citations by year
2026: 113 · 2025: 192 · 2024: 215 · 2023: 212 · 2022: 199 · 2021: 190 · 2020: 170 · 2019: 132 · 2018: 120 · 2017: 67 · 2016: 33 · 2015: 4 · 2014: 1
FWCI
37.95
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • NIMS Materials Data Repository (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Ministry of Education, Culture, Sports, Science, and Technology (25103723)
  • WPI
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 › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Non-Hermitian Physics
Keywords
topological photonic crystals, pseudospin, Berry curvature, helical edge states, TM modes, Poynting vector

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