לוח שנה משולב

Optical nanoantennas are canonical building blocks that host and participate in a variety of complex physical phenomena in the nanoscale such as in non-linear effects, quantum tunneling, plasmon dynamics, or photoemission, to cite a few. We will present a number of examples where the properties of a conductive nano-contact between the two metallic arms (nanoparticles) of a gap-antenna allows for (i) effective control of the near-field oscillations in a loaded nanoantenna, (ii) establishing a relationship between optical and transport properties through metallic cavities, or (iii) producing ultrafast switching based on an all-optical photoconductive manipulation of the gap in a hybrid metal-semiconductor system. These are just examples of the versatility of plasmonic systems to set the basis of complex optical processes. To conclude I will also address some aspects of the interaction between plasmons and electrons that opens a variety of possibilities for nanoscale optoelectronics.