Topological phase transition of the centered rectangular photonic lattice
arXiv:2005.11916
Abstract
A Cm planar photonic material (two-dimensional) including the mirror reflection symmetry is explored where in the Dirac cones appeared at the high-symmetry points of the Brillouin zone boundary. By implementing the specific perturbation on the photonic crystal (PC), topological transition can make a bridge between the trivial PC (ordinary insulator) and the topological insulator including zero and non-zero spin Chern number (Cs), respectively. The perturbation can be realized through the rotation of the Cm photonic crystal around the nonzero angle to its initial position. Therefore, breaking the mirror symmetry of the unit cell leads to mismatch of the symmetry planes of the lattice. This modification results in the directional band gap & band inversion which is the signature of the topological transitions. The mentioned PC would be suitable for examination of the unidirectional transport of light at the topological interfaces.
References in corpus (23)
- Topological Insulators
- Photonic Floquet Topological Insulators
- Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry
- Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
- Imaging topological edge states in silicon photonics
- Scheme to Achieve Silicon Topological Photonics
- Robust optical delay lines via topological protection
- Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide
- Spontaneous Quantum Hall States in Chirally-stacked Few-Layer Graphene Systems
- Valley Chern Numbers and Boundary Modes in Gapped Bilayer Graphene
- Optical Resonator Analog of a Two-Dimensional Topological Insulator
- Topological creation and destruction of edge states in photonic graphene
- Artificial Gauge Field for Photons in Coupled Cavity Arrays
- Domain walls in gapped graphene
- Gate-controlled topological conducting channels in bilayer graphene
- Topological Fano Resonances
- Anomalous Topological Phases and Unpaired Dirac Cones in Photonic Floquet Topological Insulators
- Scattering-Free Optical Edge States between Heterogeneous Photonic Topological Insulators
- Mode-Locked Topological Insulator Laser Utilizing Synthetic Dimensions
- The Nature of Topological Protection in Spin and Valley Hall Insulators
- Exciting Reflectionless Unidirectional Edge Modes in a Reciprocal Photonic Topological Insulator Medium
- Robust Transport of the Edge Modes along the Photonic Topological Interfaces of Different Configurations
- Topological photonic states and directional emission of the light exiting from the photonic topological structure composed of two dimensional honeycomb photonic crystals with different point group symmetries