Room temperature electrically pumped topological insulator lasers

Abstract

Topological insulator lasers (TILs) are a recently introduced family of lasing arrays in which phase locking is achieved through synthetic gauge fields. These single frequency light source arrays operate in the spatially extended edge modes of topologically non-trivial optical lattices. Because of the inherent robustness of topological modes against perturbations and defects, such topological insulator lasers tend to demonstrate higher slope efficiencies as compared to their topologically trivial counterparts. So far, magnetic and non-magnetic optically pumped topological laser arrays as well as electrically pumped TILs that are operating at cryogenic temperatures have been demonstrated. Here we present the first room temperature and electrically pumped topological insulator laser. This laser array, using a structure that mimics the quantum spin Hall effect for photons, generates light at telecom wavelengths and exhibits single frequency emission. Our work is expected to lead to further developments in laser science and technology, while opening up new possibilities in topological photonics.

References in corpus (34)

• Topological Insulators
• Quantum Spin Hall Effect in Graphene
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry
• Edge states and topological invariants of non-Hermitian systems
• Quantum Spin Hall Effect
• Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
• Quantized Electric Multipole Insulators
• 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
• Localization transitions in non-Hermitian quantum mechanics
• Robust optical delay lines via topological protection
• Spintronics and Pseudospintronics in Graphene and Topological Insulators
• Anomalous edge state in a non-Hermitian lattice
• Lasing in topological edge states of a 1D lattice
• A topological quantum optics interface
• A Silicon-on-Insulator Slab for Topological Valley Transport
• Topological protection of photonic mid-gap cavity modes
• Exciton-polariton topological insulator
• Complex Edge-State Phase Transitions in 1D Topological Laser Arrays
• Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide
• Photonic quadrupole topological phases
• Strain-induced pseudomagnetic field and Landau levels in photonic structures
• Topological Hybrid Silicon Microlasers
• Topologically protected midgap states in complex photonic lattices
• Photonic Topological Insulator in Synthetic Dimensions
• Synthetic dimensions in integrated photonics: From optical isolation to 4D quantum Hall physics
• Artificial Gauge Field for Photons in Coupled Cavity Arrays
• A single photonic cavity with two independent physical synthetic dimensions
• Topological photonic crystal nanocavity laser
• Topological Quantum Optics in Two-Dimensional Atomic Arrays
• Direct generation of tunable orbital angular momentum beams in microring lasers with broadband exceptional points

Cited by in corpus (15)

• Minireview on Disordered Optical Metasurfaces
• Topological metasurface: From passive toward active and beyond
• Tunable two-dimensional laser arrays with zero-phase locking
• Vector valley Hall edge solitons in superhoneycomb lattices
• Topological Transitions with an Imaginary Aubry-Andre-Harper Potential
• Engineering Interaction Dynamics in Active Resonant Photonic Structures
• Controlling lasing around Exceptional Points in Coupled Nanolasers
• Lasing on hybridized soliton frequency combs
• Intrinsic triple degeneracy point bounded by nodal surfaces in chiral photonic crystal
• $\pi$ mode lasing in the non-Hermitian Floquet topological system
• Topological Lasing from Thouless Pumping in Bilayer Photonic Crystal
• Design of a room-temperature topological exciton-polariton laser in a ZnO/TiO${}_2$-photonic crystal slab
• 2D Topological Edge States in Periodic Space-Time Interfaces
• Single-mode emission by phase-delayed coupling between nano-lasers
• Nanoimprinted topological laser in the visible