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Investigation of Fano resonances in the optomechanical cavity via a magnetic field

ABSTRACT We theoretically investigate Fano resonances in a single-cavity optomechanical system, which is driven by an external force arisen from a passed current through one end of a mirror in a magnetic field. It is revealed that the asymmetric Fano shape in the optomechanical system strongly depended on the strength of the magnetic field and current intensity. Further, we study the phase of the transmitted probe light and find a tunable switch from slow to fast light and vice versa via manipulating the magnetic field.