Multiple plasmonically induced transparency for chip-scale bandpass filters in metallic nanowaveguides

Hua Lu, Zengqi Yue, Jianlin Zhao

科研成果: 期刊稿件文章同行评审

19 引用 (Scopus)

摘要

We propose and investigate a new kind of bandpass filters based on the plasmonically induced transparency (PIT) effect in a special metal–insulator–metal (MIM) waveguide system. The finite element method (FEM) simulations illustrate that the obvious PIT response can be generated in the metallic nanostructure with the stub and coupled cavities. The lineshape and position of the PIT peak are particularly dependent on the lengths of the stub and coupled cavities, the waveguide width, as well as the coupling distance between the stub and coupled cavities. The numerical simulations are in accordance with the results obtained by the temporal coupled-mode theory. The multi-peak PIT effect can be achieved by integrating multiple coupled cavities into the plasmonic waveguide. This PIT response contributes to the flexible realization of chip-scale multi-channel bandpass filters, which could find crucial applications in highly integrated optical circuits for signal processing.

源语言英语
页(从-至)16-21
页数6
期刊Optics Communications
414
DOI
出版状态已出版 - 1 5月 2018

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