Electro-Optomechanical Modulation Instability in a Semiconductor Resonator

In semiconductor nano-optomechanical resonators, several forms of light-matter interaction can enrich the canonical radiation pressure coupling light and mechanical motion give rise to new dynamical regimes. Here, we observe an electro-optomechanical modulation instability in a gallium arsenide disk resonator. The regime is evidenced by concomitant formation regular dense combs radio-frequency optical spectrums resonator associated with permanent pulsatory dynamics intensity. mutual between light, oscillations, carriers, heat, notably through photothermal interactions, stabilizes extended comb ultrahigh frequency range that be controlled optically.