J. Eur. Opt. Soc.-Rapid Publ.
Volume 15, Number 1, 2019
|Number of page(s)||8|
|Published online||04 April 2019|
Scattering of partially coherent surface plasmon polariton fields by metallic nanostripe
Institute of Photonics, University of Eastern Finland, P. O. Box 111 FI-80101, Joensuu, Finland
2 Department of Electrical and Computer Engineering, Dalhousie University, Halifax, B3J 2X4, Nova Scotia, Canada
3 Department of Physics and Atmospheric Science, Dalhousie University, Halifax, B3H 2R2, Nova Scotia, Canada
Accepted: 19 March 2019
Background: Surface plasmon polaritons (SPPs) are electromagnetic waves that propagate at a metal-dielectric interface. Until recently, monochromatic, fully coherent SPPs have mainly been considered.
Methods: We investigate by numerical simulations the generation and properties of polychromatic, partially coherent SPPs and their scattering from a nanostripe. We use both in-house and commercial codes.
Results: A standing SPP field is created in Kretschmann’s setup between the excitation point and the nanostripe. From the scattered far-field spectrum, all spatiotemporal coherence properties of the SPP field pattern can be deduced. Illustrative examples of such coherence variations are analyzed.
Conclusions: Plasmonic nanostructures produce strong confined SPP fields of widely controllable coherence.
Key words: Surface plasmon polaritons / Partial coherence / Nanoscattering
© The Author(s) 2019
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.