Asymmetric topological pumping in nonparaxial photonics
arXiv:2112.00409 · doi:10.1038/s41467-021-27773-9
Abstract
Topological photonics was initially inspired by the quantum-optical analogy between the Schrödinger equation for an electron wavefunction and the paraxial equation for a light beam. Here, we reveal an unexpected phenomenon in topological pumping observed in arrays of nonparaxial optical waveguides where the quantum-optical analogy becomes invalid. We predict theoretically and demonstrate experimentally an asymmetric topological pumping when the injected field transfers from one side of the waveguide array to the other side whereas the reverse process is unexpectedly forbidden. Our finding could open an avenue for exploring topological photonics that enables nontrivial topological phenomena and designs in photonics driven by nonparaxiality.
arXiv comment17 pages and 3 figures
References in corpus (41)
- Topological Insulators
- Berry Phase Effects on Electronic Properties
- Topological Photonics
- Topological Photonics
- Photonic Floquet Topological Insulators
- Imaging topological edge states in silicon photonics
- Higher-Order Topological Insulators
- Robust optical delay lines via topological protection
- Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal
- Topological States and Adiabatic Pumping in Quasicrystals
- Lasing in topological edge states of a 1D lattice
- A Thouless Quantum Pump with Ultracold Bosonic Atoms in an Optical Superlattice
- Topological Thouless Pumping of Ultracold Fermions
- An Adiabatic Quantum Electron Pump
- Nonlinear topological photonics
- Photonic topological pumping through the edges of a dynamical four-dimensional quantum Hall system
- Exploring 4D Quantum Hall Physics with a 2D Topological Charge Pump
- Topological Hybrid Silicon Microlasers
- Observation of Topological Phase Transitions in Photonic Quasicrystals
- Four-Dimensional Quantum Hall Effect in a Two-Dimensional Quasicrystal
- Topological Pumping over a Photonic Fibonacci Quasicrystal
- Lasing from multipole topological corner states
- Observation of anomalous π modes in photonic Floquet engineering
- Quantum interference of topological states of light
- Topological Phase Transitions and Thouless Pumping of Light in Photonic Waveguide Arrays
- Topologically Enhanced Harmonic Generation in a Nonlinear Transmission Line Metamaterial
- Quantized Adiabatic Transport in Momentum Space
- Optical isolation with nonlinear topological photonics
- Observation of topological transport quantization by dissipation in fast Thouless pumps
- Topological pumping of edge states via adiabatic passage
- Experimental Observation of a Generalized Thouless Pump with a Single Spin
- Landau-Zener Transition in Topological Acoustic Pumping
- Topological Floquet-Thouless energy pump
- Multi-particle Wannier states and Thouless pumping of interacting bosons
- Localization, topology and quantized transport in disordered Floquet systems
- High-order topological insulators from high-dimensional Chern insulators
- Topological quantum transport and spatial entanglement distribution via disordered bulk channel
- Topologically quantized current in quasiperiodic Thouless pumps
- Dispersion Suppressed Topological Thouless Pumping
- Topological pumping assisted by Bloch oscillations
- Nonlinear optics with full three-dimensional illumination
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- Quantized Topological Anderson-Thouless Pump
- Topological phase transition in commensurate multi-frequency Floquet Su-Schrieffer-Heeger model
- Nonparaxiality-triggered Landau-Zener transition in topological photonic waveguides
- Symmetry induced selective excitation of topological states in SSH waveguide arrays
- Boosting Topological Zero Modes Using Elastomer Waveguide Arrays