Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/93243

Download PDF (Published version) (Adobe Acrobat PDF, -1 bytes)

Title

The effects of retardation on plasmon hybridization within metallic nanostructures

Author(s)

Turner, Mark D.;  Hossain, Md Muntasir;  Gu, Min

Abstract

Plasmon hybridization theory (PHT) is an analytical model developed for understanding plasmonic interactions within complex metallic nanostructures, and gives a useful insight for optimizing design parameters. However, this theory is based on the electrostatic limit, which restricts the model to nanostructures much smaller than the free space wavelength of light. Here, we extend the PHT to incorporate retardation of the Coulomb interaction and investigate the effects of retardation on plasmons within metallic structures. We compare these results using other methods, such as Mie scattering theory and the finite integration technique, and observe a good agreement in both electrostatic and retardation regimes. Plasmons within metallic nanospheres and nanotubes are shown to have significant retardation in certain regimes, causing red-shifting to plasmon wavelengths, and we discuss the implications of retardation for plasmonic devices.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

New Journal of Physics, Vol. 12 (Aug 2010), article no. 083062

Publication year

2010

FOR Code(s)

02 Physical Sciences

Keyword(s)

Metallic nanostructures;  PHT;  Plasmon hybridization;  Plasmon hybridization theory;  Retardation

Publisher

Institute of Physics Publishing

ISSN

1367-2630

Publisher URL

http://dx.doi.org/10.1088/1367-2630/12/8/083062

Copyright

Copyright © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Published version of the paper reproduced here in accordance with the copyright policy of the publisher.

Full text

Peer reviewed