Dynamical correlations and chimera-like states of nanoemitters coupled to plasmon-polaritons in a lattice of conducting nanorings

TL;DR

This paper explores how nanoemitters coupled with plasmon-polaritons in nanoring lattices exhibit complex dynamical states, including chimera-like behavior, influenced by plasma frequency and nonlinearity, with potential applications in optical device design.

Contribution

It introduces a systematic analysis of nanoemitter and plasmon-polariton interactions in nanoring lattices, revealing the emergence of chimera-like states and their dependence on plasma frequency.

Findings

Identification of chimera-like states in nanoemitter dynamics

Critical dependence of photocurrent on plasma frequency

Agreement between theoretical fit and numerical simulations

Abstract

We systematically investigate semiclassical dynamics of the optical field produced by quantum nanoemitters (NEs) embedded in a periodic lattice of conducting nanorings (NRs), in which plasmon polaritons (PPs) are excited. The coupling between PPs and NEs through the radiated optical field leads to establishment of a significant cross-correlation between NEs, so that their internal dynamics (photocurrent affected by the laser irradiation) depends on the NR's plasma frequency $\omega _{p}$. The transition to this regime,combined with the nonlinearity of the system, leads to a steep increase of the photocurrent in the NEs, as well as to non-smooth (chimera-like or chaotic) behavior in the critical (transition) region, where small variations of $\omega _{p}$ lead to significant changes in the level of the NE pairwise cross-correlations. The chimera-like state is realized as coexistence of locally synchronized and desynchronized NE dynamical states. A fit of the dependence of the critical current on $\omega _{p}$ is found, being in agreement with results of numerical simulations. The critical effect may help to design new optical devices, using dispersive nanolattices which are made available by modern nanoelectronics.