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|Title:||Generation of pronounced Fano Resonances and tuning of subwavelength spatial light distribution in plasmonic pentamers|
|Citation:||Rahmani, M., Lukiyanchuk, B., Ng, B., Tavakkoli, A.K.G., Liew, Y.F., Hong, M.H. (2011-03-14). Generation of pronounced Fano Resonances and tuning of subwavelength spatial light distribution in plasmonic pentamers. Optics Express 19 (6) : 4949-4956. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.19.004949|
|Abstract:||Arrays of plasmonic pentamers consisting of five metallic nanodisks 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 massspring 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. © 2011 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
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