Lasing from complete set of topological states in two dimensional photonic crystal structure

Abstract

Recently, topologically engineered photonic structures have garnered significant attention as their eigenstates may offer a new insight on photon manipulation and an unconventional route for nanophotonic devices with unprecedented functionalities and robustness. Herein, we present lasing actions at all hierarchical eigenstates that can exist in a topologically designed single two-dimensional (2D) photonic crystal (PhC) platform: 2D bulk, one-dimensional edge, and zero-dimensional corner states. In particular, multiple topological eigenstates are generated in a hierarchical manner with no bulk multipole moment. The unit cell of the topological PhC structure is a tetramer composed of four identical air holes perforated into an InGaAsP multiple-quantum-well epilayer slab. A square area of a topologically nontrivial PhC structure is surrounded by a topologically trivial counterpart, resulting in multidimensional eigenstates of one bulk, four side edges, and four corners within and at the boundaries. Spatially resolved optical excitation spontaneously results in lasing actions at all nine hierarchical topological states. Our experimental findings may provide insight into the development of sophisticated next-generation nanophotonic devices and robust integration platforms.

References in corpus (35)

• Topological Insulators
• Topological Photonics
• Photonic Floquet Topological Insulators
• Quantized Electric Multipole Insulators
• Imaging topological edge states in silicon photonics
• Scheme to Achieve Silicon Topological Photonics
• Robust optical delay lines via topological protection
• Electric Multipole Moments, Topological Multipole Moment Pumping, and Chiral Hinge States in Crystalline Insulators
• Topolectrical circuit realization of topological corner modes
• Observation of a phononic quadrupole topological insulator
• Lasing in topological edge states of a 1D lattice
• Higher-order topological insulators and semimetals on the breathing Kagome and pyrochlore lattices
• Acoustic higher-order topological insulator on a Kagome lattice
• Demonstration of a quantized microwave quadrupole insulator with topologically protected corner states
• Visualization of higher-order topological insulating phases in two-dimensional dielectric photonic crystals
• Nonlinear topological photonics
• Direct observation of corner states in second-order topological photonic crystal slabs
• Topological protection of photonic mid-gap cavity modes
• Topologically-protected refraction of robust kink states in valley photonic crystals
• Complex Edge-State Phase Transitions in 1D Topological Laser Arrays
• Photonic quadrupole topological phases
• Second-order photonic topological insulator with corner states
• Second-Order Topological Phases in Non-Hermitian Systems
• Novel Topological Phase with Zero Berry Curvature
• Corner states of light in photonic waveguides
• Direct Observation of Valley-polarized Topological Edge States in Designer Surface Plasmon Crystals
• Topological Hybrid Silicon Microlasers
• Topologically protected midgap states in complex photonic lattices
• Photonic crystal nanocavity based on a topological corner state
• Topological Sound
• Active topological photonics
• Topological photonic crystal nanocavity laser
• Non-linear second-order topological insulators
• Bound states in the continuum of higher-order topological insulators
• Probing one-dimensional topological phases in waveguide lattices with broken chiral symmetry

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• Nonlinear second-order photonic topological insulators
• Lasing from multipole topological corner states
• Minireview on Disordered Optical Metasurfaces
• A brief review of topological photonics in one, two, and three dimensions
• Topological metasurface: From passive toward active and beyond
• Nonlinear imaging of nanoscale topological corner states
• On the robustness of topological corner modes in photonic crystals
• Nonlinear imaging of nanoscale topological corner states
• Topological Phases of Photonic Crystals under Crystalline Symmetries
• Room-temperature continuous-wave Dirac-vortex topological lasers on silicon
• Theory of Topological Corner State Laser in Kagome Waveguide Arrays
• Higher-order topological states mediated by long-range coupling in $D_4$-symmetric lattices
• Exact Higher-order Bulk-boundary Correspondence of Corner-localized States
• Higher-order topology in plasmonic kagome lattices
• Corner modes of the breathing kagome lattice: origin and robustness
• Topological photonic crystal fibers based on second-order corner modes
• Nonlinear photonic disclination states
• Optimization and robustness of topological corner state in second-order topological photonic crystal
• Floquet Mode Resonance: Trapping light in the bulk mode of a Floquet topological insulator by quantum self-interference
• Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator
• A large-scale single-mode array laser based on a topological edge mode
• Tunable two-dimensional laser arrays with zero-phase locking
• Dirac cones and higher-order topology in quasi-continuous media
• Functionalized Tellurene; a candidate large-gap 2D Topological Insulator
• Topological edge states in all-dielectric square-lattice arrays of bianisotropic microwave resonators
• Mode pumping in photonic lattices using a single tailored auxiliary waveguide