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Optimal design of composite nanowires for extended reach of surface plasmon-polaritons

Handapangoda, Dayan; Premaratne, Malin; Rukhlenko, Ivan D; Jagadish, Chennupati


We theoretically investigate composite cylindrical nanowires for the waveguiding of the lowest-order surface plasmon-polariton (SPP) mode. We find that the confinement of the SPP fields in a metallic nanowire can be significantly improved by a dielectric cladding and show that by adjusting the thickness of the optically-pumped cladding, the gain required to compensate for the losses can be minimized. If this structure is coated with an additional metal layer to form a metal-dielectric-metal...[Show more]

CollectionsANU Research Publications
Date published: 2011-08-15
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.19.016058


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