Nonlinear higher-order polariton topological insulator
Nonlinear higher-order polariton topological insulator
We address the resonant response and bistability of the exciton–polariton corner states in a higher-order nonlinear topological insulator realized with a kagome arrangement of microcavity pillars. Such states are resonantly excited and exist due to the balance between pump and losses, on one hand, and between nonlinearity and dispersion in …