A Floquet engineering approach to optimize Schottky junction-based surface plasmonic waveguides.

ABSTRACT: The ability to finely control the surface plasmon polariton (SPP) modes of plasmonic waveguides unveils many potential applications in nanophotonics. This work presents a comprehensive theoretical framework for predicting the propagation characteristics of SPP modes at a Schottky junction exposed to a dressing electromagnetic field. Applying the general linear response theory towards a periodically driven many-body quantum system, we obtain an explicit expression for the dielectric function of the dressed metal. Our study demonstrates that the dressing field can be used to alter and fine-tune the electron damping factor. By doing so, the SPP propagation length could be controlled and enhanced by appropriately selecting the intensity, frequency and polarization type of the external dressing

SUBMITTER: Herath K 

PROVIDER: S-EPMC10315399 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature