Open AccessPolarization tunable transmission through plasmonic arrays of elliptical nanopores
Author(s) -
Pierre Lovera,
D. E. Jones,
Brian Corbett,
Alan O’Riordan
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.025325
Subject(s) - plasmon , optics , polarization (electrochemistry) , extraordinary optical transmission , fano resonance , surface plasmon , materials science , electric field , surface plasmon polariton , rayleigh scattering , finite difference time domain method , nanopore , optoelectronics , physics , nanotechnology , chemistry , quantum mechanics
Polarization dependent transmission through thin gold films bearing arrays of elliptical nanopores and assembled at transparent substrates is explored. Far field transmission spectra with incident light polarized along the short and long axis of the ellipses show asymmetric peaks. Near-field finite difference time domain simulated electric field profiles suggest these features are related to Fano resonances between the (± 1, 0) Surface Plasmon Polariton mode and the ( ± 1, 0) Rayleigh Anomaly. The unique spectral signature of these samples makes them attractive for visible and near infrared tags for anti-counterfeiting applications.