Exciton-Plasmon Coupling Effects on the Nonlinear Optical Susceptibility of Hybrid Quantum Dot-Metallic Nanoparticle System

TL;DR

This paper theoretically investigates how exciton-plasmon interactions in a hybrid quantum dot-metal nanoparticle system influence its third-order nonlinear optical properties under strong and weak optical fields.

Contribution

It introduces a theoretical model analyzing exciton-plasmon coupling effects on nonlinear optical susceptibility in a hybrid quantum dot-metal nanoparticle system.

Findings

Enhanced third-order nonlinear susceptibility due to exciton-plasmon coupling

Control field modulates nonlinear optical response

Potential applications in optical switching and quantum information

Abstract

We have studied theoretically the exciton-plasmon coupling effects on the third-order optical nonlinearity of a coherently coupled hybrid system of a metal nanoparticle and a semiconductor quantum dot in the presence of a strong control field with a weak probe field.