English

The energy point of view in plasmonics

Optics 2019-04-05 v1

Abstract

The group velocity of a plasmonic guided mode can be written as the ratio of the flux of the Poynting to the integral of the energy density along the profile of the mode. This theorem, linking the way energy propagates in metals to the properties of guided modes and Bloch modes in a multilayer, provides a unique physical insight in plasmonics. It allows to better understand the link between the negative permittivity of metals and the wide diversity of exotic phenomenon that occur in plasmonics -- like the slowing down of guided modes, the high wavevector and the negative refraction.

Keywords

Cite

@article{arxiv.1904.02607,
  title  = {The energy point of view in plasmonics},
  author = {Rabih Ajib and Armel pitelet and Rémi Pollès and Emmanuel Centeno and Ziad Ajaltouni and Antoine Moreau},
  journal= {arXiv preprint arXiv:1904.02607},
  year   = {2019}
}