Journal
OPTICS EXPRESS
Volume 17, Issue 19, Pages 16646-16653Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.016646
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Funding
- Zhejiang Provincial Natural Science Foundation [J20081048]
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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 x 5nm) when operates at the optical wavelength lambda = 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 lambda). (C) 2009 Optical Society of America
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