4.5 Article

Triple-wavelength filter based on the nanoplasmonic metal-insulator-metal waveguides

Journal

OPTICAL AND QUANTUM ELECTRONICS
Volume 53, Issue 5, Pages -

Publisher

SPRINGER
DOI: 10.1007/s11082-021-02902-2

Keywords

Surface plasmon polaritons (SPPs); Metal-insulator-metal (MIM); Fabry– Perot nanocavity; Wavelength filter; Eigen mode expansion (EME) simulation

Funding

  1. Vietnam National Foundation for Science and Technology Development (NAFOSTED) [103.03-2017.61]

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This paper presents a proposal for a compact photonic wavelength filtering and 3-dB wavelength splitting device based on a nanoplasmonic metal-insulator-metal structure, with an accurate simulation of its operating performance. Numerical simulation and optimization can significantly enhance the transmission efficiency of the drop filter, showing potential applications in highly efficient, ultra-compact integrated circuits and optical communication systems at the nanoscale size.
In this paper, we present a proposal for compact photonic wavelength filtering and 3-dB wavelength splitting device based on a nanoplasmonic metal-insulator-metal structure. The operating performance of the device has been accurately simulated using the temporal coupled-mode theory. We use a numerical simulation method of eigenmode expansion propagation in the overall design process. We show that the transmission efficiency of the drop filter can be significantly enhanced by applying specific optimization of nanotube waveguide. The proposed structure has potential applications in highly efficient, ultra-compact integrated circuits as well as in optical communication systems at the nanoscale size.

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