Thermal control of the topological edge flow in nonlinear photonic lattices.

ABSTRACT: The chaotic evolution resulting from the interplay between topology and nonlinearity in photonic systems generally forbids the sustainability of optical currents. Here, we systematically explore the nonlinear evolution dynamics in topological photonic lattices within the framework of optical thermodynamics. By considering an archetypical two-dimensional Haldane photonic lattice, we discover several prethermal states beyond the topological phase transition point and a stable global equilibrium response, associated with a specific optical temperature and chemical potential. Along these lines, we provide a consistent thermodynamic methodology for both controlling and maximizing the unidirectional power flow in the topological edge states. This can be achieved by either employing cross-phase i

SUBMITTER: Jung PS 

PROVIDER: S-EPMC9338248 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature