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Ultra-compact tunable graphene-based plasmonic multimode interference power splitter in mid infrared frequencies

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Abstract

In this paper, we propose graphene-based plasmonic multimode interference power splitters with ultra-compact size working in mid infrared range. Further, the arbitrary-ratio 1×2 power splitter with a size of 140 nm×232 nm, where the splitting ratio can be tuned continuously from 1:1 to 100:0, is numerically demonstrated. Meanwhile, the graphene-based arbitrary-ratio 1×2 power splitters with different frequencies and chemical potentials are also investigated. The proposed multimode interference structure with a deep nanoscale footprint might be a fundamental component of the future high density integrated plasmonic circuit or on-chip plasmonic interconnect techniques.

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Acknowledgments

The authors are grateful to the support by Natural Science Fund of China (Grant No. 61378058), Science and Technology Fund of Quanzhou (Grant No. Z1424009), Fujian Province Science Fund for Distinguished Young Scholars (Grant No. 2015J06015), Promotion Program for Young and Middle-Aged Teachers in Science and Technology Research of Huaqiao University (Grant No. ZQN-YX203) and Project for Cultivating Postgraduates’ Innovative Ability in Scientific Research of Huaqiao University (Grant No. 1511301022).

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Authors and Affiliations

  1. College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China

    Pingping Qiu, Weibin Qiu, Zhili Lin, Houbo Chen, Yixin Tang & Jiaxian Wang

  2. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China

    Qiang Kan & Jiaoqing Pan

Authors
  1. Pingping Qiu
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  2. Weibin Qiu
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  3. Zhili Lin
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  4. Houbo Chen
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  5. Yixin Tang
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  6. Jiaxian Wang
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  7. Qiang Kan
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  8. Jiaoqing Pan
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Correspondence to Weibin Qiu.

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Qiu, P., Qiu, W., Lin, Z. et al. Ultra-compact tunable graphene-based plasmonic multimode interference power splitter in mid infrared frequencies. Sci. China Inf. Sci. 60, 082402 (2017). https://doi.org/10.1007/s11432-016-0539-6

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  • DOI: https://doi.org/10.1007/s11432-016-0539-6

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