Tunable multicolor optomechanically induced transparency in multi-cavity optomechanical system

We theoretically investigate the dynamics of a driven optomechanical cavity-arrays coupled to a charged nanomechanical resonator via Coulomb interaction. We focus specifically on the optomechanical system consisted of two-identical cavities and two-identical charged nanomechanical resonators. Our study shows that the tunable triple optomechanically induced transparency (OMIT) can be observed from the output field at the probe frequency by controlling the strength of the Coulomb interaction. Moreover, the optomechanical system be extended to N cavities, the results indicate that there are at most multicolor (N + 1) OMIT in the transmitted probe field.