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22 January 2010 Nanoparticle for active plasmonic device
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Active plasmonic devices are much promising for optical devices and circuits at the nanoscale. We show that single nanoparticles coupled to metallic surfaces are good candidates for integrated components with nanometric dimensions. The localized plasmon of the nanoparticle launches propagating surface plasmons in the metallic thin film. Direct particle observation using leaky wave microscope geometry permits easy detection through the interference of the direct transmitted excitation light and the surface plasmon leaky mode. Investigations of the optical response of a nanoparticle deposited on metallic thin metal films reveals unexpectedly high transmission of light associated to contrast inversion in the images.
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Julie Delahaye, Samuel Gresillon, and Emmanuel Fort "Nanoparticle for active plasmonic device", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76080U (22 January 2010);

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