Employing an interferometric cavity ring-down technique we study the launching, propagation and reflection of surface plasmons on a smooth gold-air interface that is intersected by two parallel, sub-wavelength wide slits. Inside the low-finesse optical cavity defined by these slits the surface plasmon is observed to make multiple bounces. Our experimental data allow us to determine the surface-...

showing instead non-directional rotation at a much higher speed of rotation. The directional rotation is provoked by the chirality of the STM tip (Fig. 1c)5. In particular, the differences observed for enantiomers on electrical excitation with the same STM tip are attributed to non-identical tip–molecule interactions. The intramolecular vibrational energy redistribution from the high-energy C–H...

We investigate the propagation of surface plasmons in a thin layer copper surrounded by oxide ${\mathrm{Cu}}_{2}\mathrm{O}$. It is shown that particularly strong excitons ${\mathrm{Cu}}_{2}\mathrm{O}$ can have considerable impact on plasmon propagation, providing many opportunities for plasmon-exciton and plasmon-plasmon interactions. demonstrated use sufficiently metal layer, one excite so-cal...

Yang-Mills theory at finite temperature is rewritten as a theory of plasmons which provides a Hamiltonian framework for perturbation theory with resummation of hard thermal loops.

We propose the optical trapping of Rayleigh particles using tailored anisotropic and hyperbolic metasurfaces illuminated with a linearly polarized Gaussian beam. This platform permits to engineer traps at beam axis response governed by nonconservative giant recoil forces coming from directional excitation ultra-confined surface plasmons during light scattering process. Compared set over bulk me...

Abstract Surface plasmons, the collective oscillation of electrons, enable manipulation optical fields with unprecedented spatial and time resolutions. They are workhorse a large set applications, such as chemical/biological sensors or Raman scattering spectroscopy, to name only few. In particular, ultrafast response configures one most fundamental characteristics surface plasmons. Thus, rich p...

Emani, Naresh Kumar PhD, Purdue University, December 2014. Dynamic Control of Plasmonic Resonances with Graphene Based Nanostructures . Major Professors: Alexandra Boltasseva and Alexander V. Kildishev. Light incident on a metallic structure excites collective oscillations of electrons termed as plasmons. These plasmons are useful in control and manipulation of information in nanoscale dimensio...