Fundamentals of plasmonic nanocavity and circuitsPlenary/Plenary Session
1.Wuhan University
Plasmonics is a rapidly emerging branch of photonics, which offers variable means to manipulate light using plasmon excitations on metal nanostructures. Most prominently, the huge electromagnetic enhancement of plasmonic nanocavity offers the physical basis of single-molecule SERS and many other plasmon related research fields, such as tip-enhanced spectroscopy, plasmonic antennas, plasmon hybridization, quantum plasmonics, nonlinear plasmonics, plasmonic optical forces, and plasmochemistry. In this talk, the discovery, mechanism and applications of plasmonic nanocavity are briefly introduced firstly. Then we will talk about our recent studies using plasmonic nanocavity for sub-picometer sensitivity of spatial changes, extremely high optical nonlinearity and strong coupling. Another fundamental issue about plasmon propagation at the nanometer scale will be talked: The highly tunable beating of surface plasmon modes drives plasmon propagation in nanowaveguides and nanocircuits, which can realize plasmon routing, gain, logic functions etc. for nanophotonic chips.