Tuning of plasmonic nanoparticle and surface enhanced wavelength shifting of a nanosystem sensing using 3-D-FDTD method
finite difference time-domain analysis
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AbstractIn this paper, we have used in-house the 3-D finite-difference time-domain method to analyze a novel design of metallic nanoparticles based on a sensing nanosystem. The proposed structure is composed of two gold-nanocylinders of finite height with varying radii separated by a nanogap. We have demonstrated that tunable plasmonic nanoparticles can be controlled by varying the size of the interparticles separation distance. By engineering the nanogaps, it is shown that a strong enhancement of the electric field is achieved. Our simulations show a pronounced wavelength shift for small nanogaps. In addition, the influence of the refractive index of the surrounding medium is presented.
CitationBouali, A., Haxha, S., AbdelMalek, F., Dridi, M., Bouchriha, H. (2014) 'Tuning of Plasmonic Nanoparticle and Surface Enhanced Wavelength Shifting of a Nanosystem Sensing Using 3-D-FDTD Method', IEEE Journal of Quantum Electronics 50 (8), pp.651-657
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