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Plasmonic light absorption properties of bimetallic Au–Ag core–shell nanorod with nonhomogeneous Ag coating are investigated both theoretically and experimentally. When the Ag coating on the Au nanorod is not homogeneous, the overall aspect ratio and Ag composition greatly depends on the coating uniform, which strongly affects intensity changing and wavelength shift of the plasmonic absorption. When...
The fluorescence quenching efficiency of an emitter close to a gold nanodisk is investigated by theoretical calculation based on the modified quasi-static approximation and fluorescence energy transfer under dipole–dipole coupling. The calculation results show that the surface plasmon resonance (SPR) absorption is the key factor to affect the quenching efficiency. Because of the asymmetric shape of...
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