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Nanoplasmonic triple-wavelength demultiplexers in two-dimensional metallic waveguides

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Abstract

A novel kind of plasmonic wavelength demultiplexers (WDMs) based on two-dimensional metal–insulator–metal waveguides with side coupled nanocavities (SCNCs) is proposed and numerically investigated. The WDMs contain three waveguide output channels, each of which functions as a dual-stopband plasmonic filter. The demultiplexing wavelengths can be tuned by controlling the lengths and widths of SCNCs. The finite-difference time-domain results can be accurately analyzed by the resonant theory of nanocavity. Our structures have important potential applications for design of WDM systems in highly integrated optical circuits.

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Authors and Affiliations

  1. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, 710119, China

    H. Lu, X. M. Liu, L. R. Wang, D. Mao & Y. K. Gong

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  1. H. Lu
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  2. X. M. Liu
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  3. L. R. Wang
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  4. D. Mao
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  5. Y. K. Gong
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Correspondence to X. M. Liu.

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Lu, H., Liu, X.M., Wang, L.R. et al. Nanoplasmonic triple-wavelength demultiplexers in two-dimensional metallic waveguides. Appl. Phys. B 103, 877–881 (2011). https://doi.org/10.1007/s00340-011-4525-0

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  • DOI: https://doi.org/10.1007/s00340-011-4525-0

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