Nonlinear organic plasmonics

TL;DR

This paper develops a theory for nonlinear non-steady-state organic plasmonics with strong laser pulses, demonstrating bistability and near-zero dielectric permittivity, and explores applications in quantum dot energy transfer and Coulomb blockade control.

Contribution

It introduces a new theoretical framework for nonlinear organic plasmonics under strong laser excitation and proposes practical applications in quantum dot systems.

Findings

Demonstrated bistability in organic electron-vibrational systems.

Achieved near-zero dielectric permittivity during short time intervals.

Proposed control of Coulomb blockade via organic plasmonic effects.

Abstract

Purely organic materials with negative and near-zero dielectric permittivity can be easily fabricated. Here we develop a theory of nonlinear non-steady-state organic plasmonics with strong laser pulses. The bistability response of the electron-vibrational model of organic materials in the condensed phase has been demonstrated. Non-steady-state organic plasmonics enable us to obtain near-zero dielectric permittivity during a short time. We have proposed to use non-steady-state organic plasmonics for the enhancement of intersite dipolar energy-transfer interaction in the quantum dot wire that influences on electron transport through nanojunctions. Such interactions can compensate Coulomb repulsions for particular conditions. We propose the exciton control of Coulomb blocking in the quantum dot wire based on the non-steady-state near-zero dielectric permittivity of the organic host medium.