Tunable double optomechanically induced transparency in an optomechanical system

TL;DR

This paper investigates a driven optomechanical system with Coulomb coupling, demonstrating tunable double optomechanically induced transparency (OMIT) that can be used to measure Coulomb interaction strength.

Contribution

It introduces a method to achieve and control double-OMIT in an optomechanical cavity coupled via Coulomb interaction, distinct from previous double-EIT systems.

Findings

Double-OMIT can be tuned by Coulomb interaction strength.

The transparency window splitting varies linearly with Coulomb coupling.

The system's robustness against cavity decay enhances practical applications.

Abstract

We study the dynamics of a driven optomechanical cavity coupled to a charged nanomechanical resonator via Coulomb interaction, in which the tunable double optomechanically induced transparency (OMIT) can be observed from the output field at the probe frequency by controlling the strength of the Coulomb interaction. We calculate the splitting of the two transparency windows, which varies near linearly with the Coulomb coupling strength in a robust way against the cavity decay. Our double-OMIT is much different from previously mentioned double-EIT and can be applied to measure Coulomb coupling strength.