期刊
OPTICS LETTERS
卷 39, 期 15, 页码 4356-4359出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.39.004356
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- Engineering and Physical Sciences Research Council [EP/I004343/1] Funding Source: researchfish
- EPSRC [EP/I004343/1] Funding Source: UKRI
We introduce plasmonic waveguides based on metal loading of silicon-on-insulator (SOI) substrates. Here slab waveguide modes hybridize with the plasmonic modes of either a metal nanowire or a slot in a metal film. By tapering a single dimension of either structure, the resulting hybrid mode can be converted from photon-like to plasmon-like, allowing up to millimeter-range transport and rapid nanoscale focusing down to mode areas similar to lambda(2)/400. Metal loading is achievable with a single lithography step directly on SOI without the need for etching and, thus, opens practical possibilities for silicon nanoplasmonics. (C) 2014 Optical Society of America
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