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Proceedings Paper

Passive and active plasmonic nanoarray devices
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Paper Abstract

Metal nanoparticle arrays offer the possibility to considerably surpass the optical field confinement of silicon waveguides. The properties of directional couplers composed of such plasmonic nanoarrays are analyzed theoretically, while neglecting material losses. It is found that it is possible to generate very compact, submicron length, high fieldconfinement and functionality devices with very low switch energies. We further perform a study of spatial losses in Ag nanoparticle arrays by obtaining the group velocity and the lifetime of the surface plasmon polaritons. The losses are determined for different host permittivities, polarizations, and for spherical and spheroidal particles, with a minimum loss of 12 dB/μm. The possibilities to compensate the losses using gain materials, and the added noise associated with that, is briefly discussed.

Paper Details

Date Published: 18 May 2011
PDF: 7 pages
Proc. SPIE 8070, Metamaterials VI, 80700T (18 May 2011); doi: 10.1117/12.890978
Show Author Affiliations
Petter Holmström, Royal Institute of Technology (Sweden)
Jun Yuan, Royal Institute of Technology (Sweden)
Min Qiu, Royal Institute of Technology (Sweden)
Lars Thylén, Royal Institute of Technology (Sweden)
Hewlett-Packard Labs. (United States)
Alexander M. Bratkovsky, Hewlett-Packard Labs. (United States)

Published in SPIE Proceedings Vol. 8070:
Metamaterials VI
Vladimir Kuzmiak; Peter Markos; Tomasz Szoplik, Editor(s)

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