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Proceedings Paper

Are there novel resonances in nanoplasmonic structures due to nonlocal response?
Author(s): Martijn Wubs; Søren Raza; Giuseppe Toscano; Antti-Pekka Jauho; N. Asger Mortensen
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Paper Abstract

In tiny metallic nanostructures, quantum confinement and nonlocal response change the collective plasmonic behaviour with resulting important consequences for e.g. field-enhancement and extinction cross sections. Here we report on nonlocal resonances in the hydrodynamical Drude model for plasmonic nanostructures that have no counterpart in the local-response Drude model. Even though there are no additional resonances in the visible due to nonlocal response, plasmonic field enhancements are affected by nonlocal response. We present both analytical results for simple geometries and our numerical implementation for arbitrary geometries, and address computational issues related to the several length scales involved.

Paper Details

Date Published: 20 February 2012
PDF: 7 pages
Proc. SPIE 8260, Ultrafast Phenomena and Nanophotonics XVI, 82601E (20 February 2012); doi: 10.1117/12.908404
Show Author Affiliations
Martijn Wubs, Technical Univ. of Denmark (Denmark)
Søren Raza, Technical Univ. of Denmark (Denmark)
Giuseppe Toscano, Technical Univ. of Denmark (Denmark)
Antti-Pekka Jauho, Technical Univ. of Denmark (Denmark)
Aalto Univ, (Finland)
N. Asger Mortensen, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 8260:
Ultrafast Phenomena and Nanophotonics XVI
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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