Modulational instability and solitary waves in polariton topological insulators

  title={Modulational instability and solitary waves in polariton topological insulators},
  author={Yaroslav V. Kartashov and Dmitry V Skryabin},
Optical microcavities supporting exciton–polariton quasi-particles offer one of the most powerful platforms for the investigation of the rapidly developing area of topological photonics in general, and of photonic topological insulators in particular. Energy bands of the microcavity polariton graphene are readily controlled by a magnetic field and influenced by the spin-orbit (SO) coupling effects, a combination leading to the formation of linear unidirectional edge states in polariton… Expand
Microcavity polaritons for topological photonics [Invited]
Microcavity polaritons are light-matter quasiparticles that arise from the strong coupling between excitons and photons confined in a semiconductor microcavity. They typically operate at visible orExpand
Topological insulator solitons in polariton graphene
  • Y. Kartashov, D. Skryabin
  • Physics
  • 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
  • 2017
Topological insulation is recently discovered phenomenon encountered in various areas of physics, such as condensed matter, matter waves, and optics [1]. Linear topological edge states were found inExpand
Exploring nonlinear topological states of matter with exciton-polaritons: Edge solitons in kagome lattice
It is shown that exciton-polariton fluid in a nontrivial topological phase in kagome lattice, supports nonlinear excitations in the form of solitons built up from wavepackets of topological edge modes – top theological edge soliteons. Expand
Two-Dimensional Topological Polariton Laser.
Gain concentrated along the edge of the insulator can counteract intrinsic losses in such a selective way that the topologically protected edge states become amplified, while bulk modes remain damped. Expand
Inhibition of tunneling and edge state control in polariton topological insulators
We address the inhibition of tunneling in polariton condensates confined in a potential landscape created by a honeycomb array of microcavity pillars in the presence of spin-orbit coupling and ZeemanExpand
Topological Edge States and Gap Solitons in the Nonlinear Dirac Model
Topological photonics has emerged recently as a novel approach for realizing robust optical circuitry, and the study of nonlinear effects in topological photonics is expected to open the door forExpand
Exciton-polariton topological insulator
It is demonstrated experimentally an exciton-polariton topological insulator that the topological edge mode goes around defects, and that its propagation direction can be reversed by inverting the applied magnetic field. Expand
Interface states in polariton topological insulators
We address linear and nonlinear topological interface states in polariton condensates excited at the interface of the honeycomb and Lieb arrays of microcavity pillars in the presence of spin-orbitExpand
Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays.
It is illustrated that currents in this finite structure can be stable and study bistability effects arising due to the resonant character of the pump. Expand
Vector Topological Edge Solitons in Floquet Insulators
We introduce topological vector edge solitons in a Floquet insulator, consisting of two honeycomb arrays of helical waveguides with opposite directions of rotation in a focusing nonlinear opticalExpand


Edge Solitons in Nonlinear-Photonic Topological Insulators.
It is shown theoretically that a photonic topological insulator can support edge solitons that are strongly self-localized and propagate unidirectionally along the lattice edge, and using soliton collisions for optical switching. Expand
Polariton condensation in solitonic gap states in a one-dimensional periodic potential
This work reports spontaneous condensation in localized gap soliton states in a one-dimensional microcavity with a periodic modulation in a building block for polaritonic circuits, where propagation and localization are optically controlled and reconfigurable. Expand
Self-localized states in photonic topological insulators.
Self-localized wave packets forming topological edge states residing in the bulk of a nonlinear photonic topological insulator exhibit the property of unidirectional transport, similar to the transport their linear counterparts display on the edge of a topology insulator. Expand
Interacting quantum fluid in a polariton Chern insulator
We study Bogoliubov excitations of a spinor Bose-Einstein condensate in a honeycomb periodic potential, in the presence of a Zeeman field and of a spin-orbit coupling specific for photonic systems,Expand
Observation of bright solitons in a semiconductor microcavity
Microcavity polaritons are composite half-light half-matter quasiparticles, which have recently been demonstrated to exhibit rich physical properties, such as non-equilibrium condensation, parametricExpand
Photonic Floquet topological insulators
This work proposes and experimentally demonstrate a photonic topological insulator free of external fields and with scatter-free edge transport—a photonic lattice exhibiting topologically protected transport of visible light on the lattice edges. Expand
Self-induced topological transitions and edge states supported by nonlinear staggered potentials
The canonical Su-Schrieffer-Heeger (SSH) array is one of the basic geometries that have spurred significant interest in topological band-gap modes. Here, we show that the judicious inclusion ofExpand
Self-localization of polariton condensates in periodic potentials.
It is revealed that the self-localization of exciton-polaritons in the lattice may occur both in the gaps and bands of the single-particle linear spectrum, and is dominated by the effects of gain and dissipation rather than the structured potential, in sharp contrast to the conservative condensates of ultracold alkali atoms. Expand
Photonic topological insulators
It is shown that metacrystals-superlattices of metamaterials with judiciously designed properties-provide a platform for designing topologically non-trivial photonic states, similar to those identified for condensed-matter topological insulators. Expand
Collective fluid dynamics of a polariton condensate in a semiconductor microcavity
Using a coherent excitation triggered by a short optical pulse, a macroscopically degenerate state of polaritons are created that can be made to collide with a variety of defects present in the microcavity and opens the way to the investigation of new phenomenology of out-of-equilibrium condensates. Expand