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

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Abstract

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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Acknowledgements

This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 103.03-2017.61. The authors would like to thank Dr. Dao Duy Thang of Silicon Austria Labs for his advise and support on various technical contents of this research.

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Correspondence to Cao Dung Truong.

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Truong, C.D., Van, T.N., Trinh, M.T. et al. Triple-wavelength filter based on the nanoplasmonic metal-insulator-metal waveguides. Opt Quant Electron 53, 223 (2021). https://doi.org/10.1007/s11082-021-02902-2

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  • DOI: https://doi.org/10.1007/s11082-021-02902-2

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