Numerical simulation studies of nano-scale Surface plasmon components: waveguides, splitters and filters

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dc.creatorLin, Xian-Shi
dc.creatorHuang, Xu-Guang
dc.date2009-02-09
dc.date.accessioned2026-07-07T12:39:26Z
dc.date.available2026-07-07T12:39:26Z
dc.descriptionIn this paper, we theoretically and numerically demonstrate a two-dimensional Metal-Dielectric-Metal (MDM) waveguide based on finite-difference time-domain simulation of the propagation characteristics of surface plasmon polaritons (SPPs). For practical applications, we propose a plasmonic Y-branch waveguide based on MDM structure for high integration. The simulation results show that the Y-branch waveguide proposed here makes optical splitter with large branching angle (~180 degree) come true. We also introduce a finite array of periodic tooth structure on one surface of the MDM waveguide which is in a similar way as FBGs or Bragg reflectors, potentially as filters for WDM applications. Our results show that the novel structure not only can realize filtering function of wavelength with a high transmittance over 92%, but also with an ultra-compact size in the length of a few hundred nanometers, in comparison with other grating-like SPPs filters. The MDM waveguide splitters and filters could be utilized to achieve ultra-compact photonic filtering devices for high integration in SPPs-based flat metallic surfaces.
dc.description7 pages, 5 figures, conference
dc.identifierhttps://arxiv.org/abs/0902.1397
dc.identifierhttp://arxiv.org/abs/0902.1397
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219110
dc.subjectOptics
dc.titleNumerical simulation studies of nano-scale Surface plasmon components: waveguides, splitters and filters
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