Plasmonic Edge States: An Electrostatic Eigenmode Description

Dirac spectra and edge states in honeycomb plasmonic lattices.

We study theoretically the dispersion of plasmonic honeycomb lattices and find Dirac spectra for both dipole and quadrupole modes. Zigzag edge states derived from Dirac points are found in ribbons of these honeycomb plasmonic lattices. The zigzag edge states for out-of-plane dipole modes are closely analogous to the electronic ones in graphene nanoribbons. The edge states for in-plane dipole mo...

Optical Control of Fluorescence through Plasmonic Eigenmode Extinction

We introduce the concept of optical control of the fluorescence yield of CdSe quantum dots through plasmon-induced structural changes in random semicontinuous nanostructured gold films. We demonstrate that the wavelength- and polarization dependent coupling between quantum dots and the semicontinuous films, and thus the fluorescent emission spectrum, can be controlled and significantly increase...

Two Dimensional Plasmonic Eigenmode Nanolocalization in an Inhomogeneous Metal – Dielectric – Metal Slot Waveguide ¶

Edge Mode Coupling within a Plasmonic Nanoparticle

The coupling of plasmonic nanoparticles can strongly modify their optical properties. Here, we show that the coupling of the edges within a single rectangular particle leads to mode splitting and the formation of bonding and antibonding edge modes. We are able to unambiguously designate the modes due to the high spatial resolution of electron microscopy-based electron energy loss spectroscopy a...

Electrostatic Edge Instability of Lipid Membranes

cell ghosts (Steck et. al., Science 168:255(1970)). Lipid membranes, the sheets which form the boundaries of cells, must maintain their integrity for cells to live [1]. Since a tear in a membrane exposes the hydrophobic interior of the sheet to water, tradition maintains that membranes have a high line tension (energy per unit length of exposed edge) and never spontaneously form holes. We show ...