Plasmonic-photonic hybrid nanodevice: A new route toward 3D light harnessing

We propose and demonstrate a hybrid cavity system in which an optical nano-antenna (NA) is evanescently coupled to a dielectric photonic crystal (PC) cavity. While the plasmonic component leads to strongly localized fields, photon storage mechanism is provided by the surrounding photonic crystal structure. The combined effect of plasmonic field enhancement and high quality factor opens new routes for the control of light-matter interaction at the nanoscale.