A group theoretical route to deterministic Weyl points in chiral photonic lattices

Abstract

Classical topological phases derived from point degeneracies in photonic bandstructures show intriguing and unique behaviour. Previously identified exceptional points are based on accidental degeneracies and subject to engineering on a case-by-case basis. Here we show that symmetry induced (deterministic) pseudo Weyl points with non-trivial topology and hyper-conic dispersion exist at the centre of the Brillouin zone of chiral cubic systems. We establish the physical implications by means of a $P{2}_{1}3$ sphere packing, realised as a nano plasmonic system and a photonic crystal.

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Cited by in corpus (19)

• A brief review of topological photonics in one, two, and three dimensions
• The effects of retardation on the topological plasmonic chain: plasmonic edge states beyond the quasistatic limit
• Topological triply-degenerate point with double Fermi arcs
• Ideal Unconventional Weyl Point in a Chiral Photonic Metamaterial
• Gapless Unidirectional Photonic Transport Using All-Dielectric Kagome Lattices
• Soft self-assembly of Weyl materials for light and sound
• Spin-orbit interactions of transverse sound
• The Nature of Topological Protection in Spin and Valley Hall Insulators
• Discovery of a maximally charged Weyl point
• Manipulating Topological Valley Modes in Plasmonic Metasurfaces
• Multiple Weyl and Double-Weyl Points in an Elastic Chiral Lattice
• Hidden-symmetry-enforced nexus points of nodal lines in layer-stacked dielectric photonic crystals
• Acoustic spin-1 Weyl semimetal
• Topological Bulk Lasing Modes Using an Imaginary Gauge Field
• Second-order topological modes in two-dimensional continuous media
• Observation of Single Pair of Type-III Weyl Points in Sonic Crystals
• Unconventional bound states in the continuum from metamaterial induced electron-acoustic plasma waves
• A chiral family of triply-periodic minimal surfaces derived from the quartz network
• Realization of Photonic Charge-2 Dirac Point by Engineering Super-modes in Topological Superlattices