An efficiently and tunable switch between slow- and fast-light in double mode with an optomechanical system

TL;DR

This paper demonstrates a tunable optomechanical system that can switch between slow and fast light by adjusting laser detuning and Coulomb coupling, with potential applications in optical communication.

Contribution

It introduces a novel method to control slow and fast light in a coupled optomechanical system using Coulomb interaction and laser detuning.

Findings

Tunable switch between slow and fast light observed.

Signal light frequencies can be adjusted via Coulomb coupling.

Potential applications in optical communication and nonlinear optics.

Abstract

We study the dynamics of a driven optomechanical cavity coupled to a charged nanomechanical resonator via Coulomb interaction. We find the tunable switch between slow-and fast- light in double-mode can be observed from the output field by adjusting the laser-cavity detuning in this coupled system. Moreover, the requencies of signal light can be tuned by Coulomb coupling strength. The proposal may have potential application in optical communcation and nonlinear optics.