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  • Title: A silicon-based hybrid plasmonic waveguide with a metal cap for a nano-scale light confinement.
    Author: Dai D, He S.
    Journal: Opt Express; 2009 Sep 14; 17(19):16646-53. PubMed ID: 19770880.
    Abstract:
    A hybrid plasmonic waveguide with a metal cap on a silicon-on-insulator rib (or slab) is presented. There is a low-index material nano-layer between the Si layer and the metal layer. The field enhancement in the nano-layer provides a nano-scale confinement of the optical field (e.g., 50 nm x 5 nm) when operates at the optical wavelength lambda = 1550 nm. The theoretical investigation also shows that the present hybrid plasmonic waveguide has a low loss and consequently a relatively long propagation distance (on the order of several tens of lambda).
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