Topological Frenkel Exciton-Polaritons in One-Dimensional Lattices of Strongly Coupled Cavities

TL;DR

This paper proposes a one-dimensional cavity lattice to realize topological Frenkel polaritons, demonstrating robust edge states and phase control, paving the way for practical topological polariton devices at room temperature.

Contribution

It introduces a cavity lattice model for topological Frenkel polaritons and demonstrates phase control and robustness of edge states through classical and quantum analyses.

Findings

Topological and trivial phases can be accessed in the cavity lattice.

Edge states are robust under defects.

The setup is feasible for room temperature experiments.

Abstract

Frenkel polaritons, hybrid light-matter quasiparticles, offer promises for the designing of new opto-electronic devices. However, their technological implementations are hindered by sensitivity to imperfections. Topology has raised as a way to circumvent defects and fabrication limitations. Here, we propose a lattice of cavities to realize the one-dimensional Su-Schrieffer-Heeger model (SSH) for topological Frenkel polaritons. By engineering the configuration of the cavities we demonstrate that the SSH topological and trivial phases can be accessed, which we unravel by complementary classical and quantum theories. We demonstrate the polariton edge state robustness under defects and the broadening of the photon and exciton lines. Our findings propose a realistic yet simple experimental setup to realize topological room temperature polaritons.