Polariton multistability in a nonlinear optomechanical cavity

We theoretically study the polariton multistability in a solid state based optomechanical resonator embedded with a quantum well and a chi ((2)) second order nonlinear medium. The excitonic transition inside the quantum well is strongly coupled to the optical cavity mode. The polariton formed due to the mixing of cavity photons and exciton states are coupled to the mechanical mode which gives rise to the bistable behavior. A transition from bistability to tristability occurs in the presence of a strong chi ((2)) nonlinearity. Switching between bistability and tristability can also be controlled using exciton-cavity and optomechanical coupling making the system highly tunable. Tristability appears at low input power making it a suitable candidate for polaritonic devices which requires low input power.

Automated summary

Theoretical study was conducted on the polariton multistability in a solid state optomechanical resonator embedded with a quantum well and a chi ((2)) second order nonlinear medium. It was found that a transition from bistability to tristability occurs in the presence of a strong chi ((2)) nonlinearity. Additionally, the switching between bistability and tristability can be controlled using exciton-cavity and optomechanical coupling.