Temporal nonlinear dynamics of plasmon-solitons, a Duffing oscillator-based approach

TL;DR

This paper models the temporal nonlinear dynamics of plasmon-solitons in plasmonic waveguides using a Duffing oscillator framework, revealing energy exchange phenomena and nonlinear modulation capabilities.

Contribution

It introduces a Duffing oscillator-based approach to describe plasmon-soliton dynamics, highlighting the nonlinear interactions and resonance effects in plasmonic waveguides.

Findings

Duffing equation models plasmon-soliton temporal behavior

Energy exchange leads to Fano resonance phenomena

Nonlinear modulation is tunable via waveguide nonlinearity

Abstract

This paper deals with the temporal nonlinear dynamics of plasmon-solitons in a plasmonic waveguide. Duffing equation is recognized as the temporal part of the nonlinear amplitude equation governing the plasmonic waveguide. It is shown that Duffing oscillator waveforms stand for the temporal nonlinear dynamics of plasmon-soliton waves. The exchange of Lorentz-type bright and dark solitons energies gives rise to a Fano resonance. It is thus shown that the interaction of solitons and the formation of plasmon-solitons is inherently nonlinear. It is accordingly indicated that the nonlinear modulation of the plasmon-solitons is achievable via tuning the nonlinearity of the plasmonic waveguide.