Hybrid metallo-dielectric nanophotonic platforms: how can we benefit from coupling plasmonic antennas and dielectric cavities?
Abstract – It has been recently proposed that nanophotonic platforms composed of metallic nano-antennas and dielectric microcavity could enhance light matter interaction further than what is allowed by its individual components by combining both strong field confinement and high quality factors. We further explore this concept of “hybrid metallo-dielectric resonators” which also allows for an additional control over radiation properties, in particular in the context of microdisk cavities supporting whispering gallery modes dressed by phased arrays of plasmonic antennas, to enable tailored emission directionality by quantum emitters, or the generation of beams carrying orbital angular momentum.
Bio – Kévin Cognée is a joint PhD student in the Resonant Nanophotonics group at AMOLF NWO-Institute (Amsterdam, the Netherlands) and the Light in Complex Nanostructures group at the LP2N (Institut d’Optique-CNRS, Talence, France). He obtained his engineering degree from the Institut d’Optique Graduate School (Palaiseau, France) and masters degree in physics (high honors) from the University of Bordeaux in 2015. He started his PhD under the supervision of Philippe Lalanne and Femius Koenderink in 2015 and his research focuses on the quasi-normal mode formalism applied to micro and nano-resonators, and cavity-antenna hybrid systems for strong emission enhancement, in particular in the context of SERS, and directionality. Kévin will defend his thesis in January 2020 in Amsterdam.