Novel Dielectric-Loaded Plasmonic Waveguide for Tight-Confined Hybrid Plasmon Mode
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In this paper, a novel metal-dielectric waveguide structure is proposed to support hybrid long range surface plasmon polaritons (LRSPPs) with a highly confined mode field. The simulation results showed that our proposed structure has better mode confinement and propagation length compared to that of conventional dielectric-loaded surface plasmon polaritons (DLSPPs) waveguides. This structure offers greater flexibility for the design of surface plasmon polaritons (SPPs) waveguides by altering the trade-off between mode confinement and propagation length. The proposed structure has significant potential for application in highly integrated photonic circuits.
KeywordsSurface plasmon resonant Optical waveguide Dielectric-loaded plasmonic waveguide
This work was supported by Dublin Institute of Technology under the Fiosraigh Research Scholarship, Science Foundation Ireland under grant no. 11/TIDA/B2051, 07/SK/I1200, 07/SK/I1200-STTF11, and the Open Fund of the State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), China.
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