We demonstrate for the first time, second-harmonic generation (SHG) is allowed through the control of optical modal asymmetry rather than breaking the symmetry of material or geometry. Our idea is realized through a plasmonic two-wire transmission-line. As compared to other SHG using surface plasmon polaritons, our second-harmonic signal remains guided.
Talbot self-imaging extended to azimuthal angle for the first time.
Jeff and Valley discovered a novel way to create optical near-field vortices using linearly-polarized laser excitation!
Danny’s mode conversion paper in a plasmonic two-wire transmission-line published in Nano Letters.
Phil Tsai’s work on selective trapping or rotation of mircoparticles using a plasmonic Archimedes spiral published.