27 November 2012 Subwavelength dielectric-loaded plasmonic waveguides based on a core-shell structure
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Abstract
A new type of subwavelength plasmonic waveguide based on a core-shell structure has been proposed. It is based on a semicylinder-shape dielectric-loaded plasmonic waveguide supporting the excitation of surface plasmon polaritons (SPPs). Simulation results reveal that the proposed waveguide exhibit a better trade-off in terms of mode localization and propagation length when compared to the traditional dielectric-loaded plasmonic waveguide. In addition, a ring resonator formed with the proposed waveguide shows a perfect performance with 1.8nm bandwidth and 23dB extinction ratio.
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Bing Shen, Bing Shen, Yongqing Huang, Yongqing Huang, Xiaomin Ren, Xiaomin Ren, Qi Wang, Qi Wang, Xia Zhang, Xia Zhang, Xiaofeng Duan, Xiaofeng Duan, Dong Zhang, Dong Zhang, Jinghua Hu, Jinghua Hu, } "Subwavelength dielectric-loaded plasmonic waveguides based on a core-shell structure", Proc. SPIE 8555, Optoelectronic Devices and Integration IV, 855505 (27 November 2012); doi: 10.1117/12.999493; https://doi.org/10.1117/12.999493
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