Orbital edge states in a photonic honeycomb lattice

Abstract

We experimentally reveal the emergence of edge states in a photonic lattice with orbital bands. We use a two-dimensional honeycomb lattice of coupled micropillars whose bulk spectrum shows four gapless bands arising from the coupling of $p$-like photonic orbitals. We observe zero-energy edge states whose topological origin is similar to that of conventional edge states in graphene. Additionally, we report novel dispersive edge states that emerge not only in zigzag and bearded terminations, but also in armchair edges. The observations are reproduced by tight-binding and analytical calculations. Our work shows the potentiality of coupled micropillars in elucidating some of the electronic properties of emergent 2D materials with orbital bands.

References in corpus (31)

• Topological Insulators
• Topological insulators and superconductors
• Black phosphorus field-effect transistors
• 2D materials and van der Waals heterostructures
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Classification of topological insulators and superconductors in three spatial dimensions
• Quantum fluids of light
• Imaging topological edge states in silicon photonics
• The Renaissance of Black Phosphorus
• Topological Boundary Modes in Isostatic Lattices
• Topological Origin of Zero-Energy Edge States in Particle-Hole Symmetric Systems
• Observation of zigzag and armchair edges of graphite using scanning tunneling microscopy and spectroscopy
• Flat bands and Wigner crystallization in the honeycomb optical lattice
• The Zak phase and the existence of edge states in graphene
• Direct observation of Dirac cones and a flatband in a honeycomb lattice for polaritons
• Observation of novel edge states in photonic graphene
• Bosonic Condensation and Disorder-Induced Localization in a Flat Band
• Edge states and the bulk-boundary correspondence in Dirac Hamiltonians
• The $p_{x,y}$-orbital counterpart of graphene: cold atoms in the honeycomb optical lattice
• Polariton condensation in photonic molecules
• Coriolis Force Induced Quantum Hall Effect for Phonons
• Zero modes and the edge states of the honeycomb lattice
• Anomalous and Quantum Hall Effects in Lossy Photonic Lattices
• Dirac Cones, Topological Edge States, and Nontrivial Flat Bands in Two-Dimensional Semiconductors with a Honeycomb Nanogeometry
• Electronic and magnetic properties of zigzag graphene nanoribbons on the (111) surface of Cu, Ag and Au
• Manipulation of edge states in microwave artificial graphene
• Topological Varma superfluid in optical lattices
• Edge states in graphene-like systems
• Theory of edge-state optical absorption in two-dimensional transition metal dichalcogenide flakes
• Edge states in dichalcogenide nanoribbons and triangular quantum dots
• Zero-energy edge states and their origin in particle-hole symmetric systems: symmetry and topology

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