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Your search keyword '"Hong, M H"' showing total 11 results
Start Over Author "Hong, M H" Journal optics express
11 results on '"Hong, M H"'

11. Generation of pronounced Fano resonances and tuning of subwavelength spatial light distribution in plasmonic pentamers.

Author

Rahmani M, Lukiyanchuk B, Ng B, Tavakkoli K G A, Liew YF, and Hong MH

Abstract

Arrays of plasmonic pentamers consisting of five metallic nano-disks were designed and fabricated to achieve a pronounced Fano Resonance with polarization-independent far-field spectral response at normal incidence due to the structure symmetry of pentamers. A mass-spring coupled oscillator model was applied to study plasmon interactions among the nano-disks. It was found that the direction of the excitation light polarization can flexibly tune the spatial localization of near-field energy at sub-wavelength scales while the collective optical properties are kept constant. It can lead to a selective storage of excited energy down to sub-20 nm gap at a normal incident with a single light source.

Published
2011
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