Vibrational Resonance Amplification in a Thermo-Optic Optomechanical Nanocavity

Vibrational resonance amplifies a weak low-frequency signal by use of an additional non-resonant high-frequency modulation. The realization enhancement in integrated nonlinear optical nanocavities is great interest for nanophotonic applications where signals may be low power. Here, we report experimental observation vibrational thermo-optically bistable photonic crystal optomechanical resonator with amplification up to +16 dB. characterization the bistability can interestingly done using mechanical membrane, which submitted strong thermo-elastic coupling cavity.