Article,

A silicon-based hybrid plasmonic waveguide with a metal cap for a nano-scale light confinement

, and .
Optics Express, 17 (19): 16646 (September 2009)
DOI: 10.1364/OE.17.016646

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., 50nm �?5nm) when operates at the optical wavelength $łambda$ = 1550nm. 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 $łambda$).

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