Conference paper · Preprint article
Nanoplasmonics beyond Ohm's law
Department of Photonics Engineering, Technical University of Denmark1
Structured Electromagnetic Materials, Department of Photonics Engineering, Technical University of Denmark2
Department of Micro- and Nanotechnology, Technical University of Denmark3
Theoretical Nanotechnology, Department of Micro- and Nanotechnology, Technical University of Denmark4
Center for Electron Nanoscopy, Technical University of Denmark5
In tiny metallic nanostructures, quantum confinement and nonlocal response change the collective plasmonic behavior with important consequences for e.g. field-enhancement and extinction cross sections. We report on our most recent developments of a real-space formulation of an equation-of-motion that goes beyond the common local-response approximation and use of Ohm's law as the central constitutive equation.
The electron gas is treated within a semi-classical hydrodynamic model with the emergence of a new intrinsic length scale. We briefly review the new governing wave equations and give examples of applying the nonlocal framework to calculation of extinction cross sections and field enhancement in isolated particles, dimers, and corrugated surfaces.
| Language: | English |
|---|---|
| Publisher: | American Institute of Physics |
| Year: | 2012 |
| Pages: | 28-32 |
| Proceedings: | 5th International Workshop on Theoretical and Computational Nano-Photonics |
| ISSN: | 15517616 and 0094243x |
| Types: | Conference paper and Preprint article |
| DOI: | 10.1063/1.4750085 |
| ORCIDs: | Mortensen, N. Asger , Raza, Søren , Stenger, Nicolas , Jauho, Antti-Pekka , Xiao, Sanshui and Wubs, Martijn |
