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Characteristics of Plasmonic Filters with a Notch Located Along Rectangular Resonators

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Abstract

We propose a plasmonic filter with a notch located along a rectangular resonator. The finite difference time domain method is utilized to investigate and analyze the transmission characteristics of the filter. Results reveal that the introduction of the notch affects the first and second resonant modes of the resonator in different manners due to different magnetic field distributions inside the resonator. The evolution of the transmission-peak wavelengths as a function of the notch position with the same total resonator length is given. Effects of geometrical parameters of the notch on peak wavelengths are also studied. The corresponding theoretical model of our proposal is discussed, which agrees well with simulation results.

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Acknowledgments

The work was supported by National Basic Research Program of China (2011CB301803, 2012CB315704), the Program for New Century Excellent Talents in University (NCET-08-0821), the State Key Lab of Optical Technologies for Micro-Engineering and Nano-Fabrication of China, and the Fundamental Research Funds for the Central Universities (SWJTU10ZT05, SWJTU11CX136).

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Authors and Affiliations

  1. Center for Information Photonics and Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China

    Yinghui Guo, Lianshan Yan, Wei Pan, Bin Luo, Kunhua Wen & Zhen Guo

  2. State Key Lab of Optical Technology for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Science, Chengdu, 610029, China

    Xiangang Luo

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  1. Yinghui Guo
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  2. Lianshan Yan
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  3. Wei Pan
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  4. Bin Luo
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  5. Kunhua Wen
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  6. Zhen Guo
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  7. Xiangang Luo
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Correspondence to Lianshan Yan.

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Guo, Y., Yan, L., Pan, W. et al. Characteristics of Plasmonic Filters with a Notch Located Along Rectangular Resonators. Plasmonics 8, 167–171 (2013). https://doi.org/10.1007/s11468-012-9372-2

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  • DOI: https://doi.org/10.1007/s11468-012-9372-2

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