Nonlocal Response in Plasmonic Nanostructures

Martijn Wubs, N. Asger Mortensen

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Abstract

After a brief overview of nanoplasmonics experiments that defy explanation with classical electrodynamics, we introduce nonlocal response as a main reason for non-classical effects. This concept is first introduced phenomenologically, and afterwards based on the semi-classical hydrodynamic Drude model (HDM) that indeed exhibits nonlocal response. In particular, we discuss recent generalizations and extensions of the HDM, to include both convection and diffusion dynamics of the induced charges. This generalized nonlocal optical response (GNOR) model allows for the first time unified semi-classical explanations of known experimental phenomena for both monomers and dimers that previously seemed to require microscopic theory. Finally, we turn to Landau damping and discuss the microscopic origin of the size-dependent damping captured by the classical diffusion mechanism in the GNOR model.
Original languageEnglish
Title of host publicationQuantum Plasmonics
PublisherSpringer
Publication date2016
Pages279-302
Chapter12
ISBN (Print)978-3-319-45819-9
DOIs
Publication statusPublished - 2016
SeriesSpringer Series in Solid State Sciences
Volume185
ISSN0171-1873

Keywords

  • Physics
  • Optics, Lasers, Photonics, Optical Devices
  • Quantum Optics
  • Semiconductors
  • Microwaves, RF and Optical Engineering
  • Optical and Electronic Materials
  • Nanotechnology and Microengineering
  • Plasmonics
  • Nonlocal response
  • Spatial dispersion
  • Linear-response theory
  • Hydrodynamic Drude model
  • Additional boundary conditions
  • Semi-classical electrodynamics
  • Quantum plasmonics
  • Computational plasmonics
  • Landau damping

Cite this

Wubs, M., & Mortensen, N. A. (2016). Nonlocal Response in Plasmonic Nanostructures. In Quantum Plasmonics (pp. 279-302). Springer. Springer Series in Solid State Sciences, Vol.. 185 https://doi.org/10.1007/978-3-319-45820-5_12