ROBUST CYLINDRICAL PLASMONIC NANO-ANTENNAS FOR LIGHT-MATTER INTERACTION
Author(s) -
Kaushal Choonee,
R.R.A. Syms
Publication year - 2014
Publication title -
electromagnetic waves
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 89
eISSN - 1559-8985
pISSN - 1070-4698
DOI - 10.2528/pier14050905
Subject(s) - plasmon , nano , physics , optoelectronics , optics , nanotechnology , materials science , quantum mechanics
A cylindrical metallic plasmonic nano-antenna consisting of a shell supporting a disk, named capped shell, is proposed and studied by frequency domain flnite element analysis. This new topology is shown to be weakly dependent on the radius of the structure and is therefore suitable for fabrication by parallel processes such as island lithography which generates a pseudo-random array with a distribution of diameters. Furthermore, compared to similar resonators such as rods, disks and shells, the capped shell generates a larger volume with high flelds, and is hence useful as a nano-antenna for light-matter interaction.
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