Reuven Gordon1

1, University of Victoria, Victoria, British Columbia, Canada

This talk will review our recent work on exploring functional plasmonics (i.e., switching, plasmonic Coulomb blockade) achieved in subnanometer gaps at the transition point towards tunneling. This is an ultra-sensitive plasmonic platform, akin to the metal-insulator transition achieved bulk materials like vanadium dioxide; however, subnanometer gaps provide a designer-based approach to switching.

I will also discuss our recent work on dual-wavelength upconversion and upconversion from single upconverting nanocrystals trapped optically within an aperture in a metal film. We demonstrate that tuning the aperture dimensions can have a massive impact on the upconversion detected.