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Robust and Tunable One-Way Magnetic Surface Plasmon Waveguide: An Experimental Demonstration

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Abstract

We have demonstrated experimentally a one-way magnetic surface plasmon (MSP) electromagnetic (EM) waveguide in the microwave range based on the magnetic photonic crystals (MPCs). The waveguide exhibits asymmetric transmission of EM waves in the frequency range near the MSP resonance for an MPC, such that a significant one-way propagation can be observed in the channel between the two MPC slabs, each in an external static magnetic field (ESMF) of opposite directions. The one-way waveguide is not only immune to interstitial metal defects but also robust against the disorder of rod position. Furthermore, its working frequency can be flexibly tuned by an ESMF, which makes it more favorable for the design of EM devices. The physics is related to the broken time-reversal symmetry of the MSP band states and the excitation of a giant circulation of the energy flow, similar to the case in the quantized Hall effect.

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Acknowledgments

J. Shen is supported by the State Scholarship Fund of the China Scholarship Council; John Q. Xiao is supported by NSF under grant no. ECCS-1001715; S. Y. Liu is supported by NNSFC under grant no. 10904020, CPSF under grant no. 200902211, ZPNSFC under grant no. Y1100041, and the open project of SKLSP in Fudan University under grant no. KL2011_8; Z. F. Lin is supported by the China 973 program under grant no. 2011CB922004, MOE of China under grant no. B06011, and SMCST under grant no. 08dj1400302; S. T. Chui is partly supported by a grant from DOE; J. Shen and H. W. Zhang are supported by NNSFC under grant no. 50972023, National Basic Research Program of China under grant no. 2007CB31407, National Natural Science Foundation Innovation Group under grant no. 60721001, National Natural Youth Fund of China under grant no. 61001025, National Programs for Science and Technology Development of Guangdong Province under grant no. 2010B090400314, and the National Basic Research Program of China under grant no. 2012CB933100.

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Authors and Affiliations

  1. State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China

    Jian Shen & Huaiwu Zhang

  2. Department of Physics and Astronomy, University of Delaware, Newark, DE, 19716, USA

    Jian Shen, Xin Fan, Xiaoming Kou, Qi Lu & John Q. Xiao

  3. Institute of Information Optics, Zhejiang Normal University, Jinhua, Zhejiang, 321004, People’s Republic of China

    Shiyang Liu

  4. Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE, 19716, USA

    S. T. Chui

  5. State Key Laboratory of Surface Physics (SKLSP) and Department of Physics, Fudan University, Shanghai, 200433, People’s Republic of China

    Shiyang Liu & Zhifang Lin

Authors
  1. Jian Shen
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  2. Shiyang Liu
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  3. Huaiwu Zhang
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  4. S. T. Chui
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  5. Zhifang Lin
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  6. Xin Fan
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  7. Xiaoming Kou
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  8. Qi Lu
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  9. John Q. Xiao
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Corresponding author

Correspondence to John Q. Xiao.

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Shen, J., Liu, S., Zhang, H. et al. Robust and Tunable One-Way Magnetic Surface Plasmon Waveguide: An Experimental Demonstration. Plasmonics 7, 287–291 (2012). https://doi.org/10.1007/s11468-011-9305-5

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  • DOI: https://doi.org/10.1007/s11468-011-9305-5

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