Hybrid topological guiding mechanisms for photonic crystal fibers
arXiv:2005.12421 · doi:10.1364/OE.398559
Abstract
We create hybrid topological-photonic localisation of light by introducing concepts from the field of topological matter to that of photonic crystal fiber arrays. S-polarized obliquely propagating electromagnetic waves are guided by hexagonal, and square, lattice topological systems along an array of infinitely conducting fibers. The theory utilises perfectly periodic arrays that, in frequency space, have gapped Dirac cones producing band gaps demarcated by pronounced valleys locally imbued with a nonzero local topological quantity. These broken symmetry-induced stop-bands allow for localised guidance of electromagnetic edge-waves along the crystal fiber axis. Finite element simulations, complemented by asymptotic techniques, demonstrate the effectiveness of the proposed designs for localising energy in finite arrays in a robust manner.
References in corpus (30)
- Topological Order and the Quantum Spin Hall Effect
- Topological Photonics
- Valley contrasting physics in graphene: magnetic moment and topological transport
- Topological phases of non-Hermitian systems
- Electric Multipole Moments, Topological Multipole Moment Pumping, and Chiral Hinge States in Crystalline Insulators
- Acoustic topological insulator and robust one-way sound transport
- All-Si Valley-Hall Photonic Topological Insulator
- Topological Phases in Two-Dimensional Materials: A Brief Review
- Direct Observation of Valley-polarized Topological Edge States in Designer Surface Plasmon Crystals
- Valley Vortex States in Sonic Crystals
- Intervalley scattering, long-range disorder, and effective time reversal symmetry breaking in graphene
- Hybrid photonic-crystal fiber
- Electronic Highways in Bilayer Graphene
- Topological phononic insulator with robustly pseudospin-dependent transport
- Observation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splitting
- Topological one-way fiber of second Chern number
- Tutorial: Computing topological invariants in two-dimensional photonic crystals
- Engineering Fragile Topology in Photonic Crystals: Topological Quantum Chemistry of Light
- Novel topological beam-splitting in photonic crystals
- Single-Valley Engineering in Graphene Superlattices
- Gapless Unidirectional Photonic Transport Using All-Dielectric Kagome Lattices
- Designing multi-directional energy-splitters and topological valley supernetworks
- Observation of topological edge states of sound at a momentum away from the high-symmetry point
- Helical scattering and valleytronics in bilayer graphene
- Geometrically navigating topological platonic modes around gentle and sharp bends
- A bird's eye view on the flat and conic band world of the honeycomb and Kagome lattices: Towards an understanding of 2D Metal-Organic Frameworks electronic structure
- Topological photonic crystal fibers and ring resonators
- Topological valley transport under long-range deformations
- Experimental observations of topologically guided water waves within non-hexagonal structures
- Photonic realization of topologically protected bound states in domain-wall waveguide arrays