Experimental demonstration of the robust end state in a split-ring-resonator chain

Abstract

One of the fascinating topological phenomena is the end state in one dimensional system. In this work, the topological photonics in the dimer chains composed by the split ring resonators are revealed based on the Su-Schrieffer-Heeger model. The topologically protected photonic end state is observed directly with the in situ measurements of the local density of states in the topological nontrivial chain. Moreover, we experimentally demonstrate that the end state localized at both ends is robust against a varied of perturbations, such as loss and disorder. Our results not only provide a versatile platform to study the topological physics in photonics but also may have potential applications in the robust communication and power transfer.

References in corpus (17)

• Quantum Spin Hall Effect in Graphene
• Topological Photonics
• Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry
• Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
• Imaging topological edge states in silicon photonics
• Scheme to Achieve Silicon Topological Photonics
• Selective enhancement of topologically induced interface states in a dielectric resonator chain
• Observation of the topological soliton state in the Su-Schrieffer-Heeger model
• Optical Resonator Analog of a Two-Dimensional Topological Insulator
• Topological phases of generalized Su-Schrieffer-Heeger models
• Self-induced topological transitions and edge states supported by nonlinear staggered potentials
• Topological Edge Plasmon Modes between Diatomic Chains of Nanoparticles
• Tight-binding couplings in microwave artificial graphene
• Measuring topological invariants from generalized edge states in polaritonic quasicrystals
• Photonic simulation of topological excitations in metamaterials
• Enhancement of Electromagnetically Induced Transparency in Metamaterials Using Long Range Coupling Mediated by a Hyperbolic Material
• Photonic Spin Hall Effect in Waveguides Composed of Two Types of Single-Negative Metamaterials

Cited by in corpus (13)

• A brief review of topological photonics in one, two, and three dimensions
• Wireless power transfer via topological modes in dimer chains
• Demonstration of topological wireless power transfer
• Topological Photonic Tamm-States and the Su-Schrieffer-Heeger Model
• Observation of Dual-band Topological Corner Modes in Acoustic Kagome Lattice with Long-range Interactions
• Observation of Flat Frequency Bands at Open Edges and Antiphase Boundary Seams in Topological Mechanical Metamaterials
• Topological modes in radiofrequency resonator arrays
• Topological split-ring resonator based metamaterials with $\mathcal{P}\mathcal{T}$ symmetry relying on gain and loss
• Sensitivity of topological edge states in a non-Hermitian dimer chain
• Seeing Topological Order and Band Inversion in Optical Diatomic Chain
• Topological edge states and disorder robustness in one-dimensional off-diagonal mosaic lattices
• Ultrastrong light-matter coupling in near-field coupled split-ring resonators revealed by photocurrent spectroscopy
• One-dimensional topological quasiperiodic chain for directional wireless power transfer