We present a comprehensive numerical analysis of the guiding of a photonic signal in the form of a strongly con fined asymmetric surface plasmon polariton (SPP) mode along metallic nanowire waveguides. The proposed approach provides extremely high localization of the SPP mode, nanoscale integration density, and a feasible technological platform. The waveguide performance was studied over a broad range of subwavelength cross sections at a telecommunication wavelength. It was optimized using a conventional figure of merit for data transfer along a straight waveguide and an all-inclusive figure of merit has been introduced.
© 2011 Optical Society of America
Original Manuscript: May 4, 2011
Revised Manuscript: June 28, 2011
Manuscript Accepted: July 6, 2011
Published: August 10, 2011
Alexey V. Krasavin and Anatoly V. Zayats, "Guiding light at the nanoscale: numerical optimization of ultrasubwavelength metallic wire plasmonic waveguides," Opt. Lett. 36, 3127-3129 (2011)