Nonlinear Frequency

Exploiting Orbital Angular Momenta and Nonlinear Frequency Conversion in Plasmonic Devices

Chen-Bin (Robin) Huang
Thursday, March 8, 2018 - 4:00pm to 5:00pm

Surface plasmons (SPs) are evanescent waves generated through the collective oscillations of electrons at a metal/dielectric interface under optical excitation. Due to the strong light-electron coupling and near-field nature, surface plasmons offer: (1) the opportunity for sub-wavelength spatial confinement of optical waves is enabled; and (2) giant local field enhancement of optical waves is permitted. These unique attributes lead to the long-envisaged optical circuits, and allowed breakthroughs in the generally termed “plasmonics” [1]. For example, in the realizations of optical nano-...