Optical transmission enhancement of stacked plasmonic apertures
Janipour, Mohsen and Şendur, Kürşat (2016) Optical transmission enhancement of stacked plasmonic apertures. Journal of Lightwave Technology, 34 (3). pp. 961-968. ISSN 0733-8724 (Print) 1558-2213 (Online)
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Official URL: http://dx.doi.org/10.1109/JLT.2015.2497905
In this study, we demonstrate enhanced transmission for out-of-plane stacked plasmonic apertures through the interaction of localized surface plasmons of apertures using both numerical and theoretical approaches. A dispersive finite-difference time-domain (D-FDTD) model is used to investigate the systems through numerical simulations. To explain the results of the FDTD numerical simulations and to bring further insight to this interaction, we use magnetic coupled dipole approximation (MCDA) as the theoretical basis. Our results demonstrate that near-field in-phase and out-of-phase interactions of the stacked nanoholes increase or decrease the optical transmission. Plasmon hybridization is discussed for stacked nanohole dimers on out-of-plane metallic films.
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