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An experimental study on the bandwidth and tunability of MSP-based one-way transmission

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Abstract

We studied how the constitution parameters and applied bias magnetic field influence the bandwidth and frequency tunability of the one-way transmission (OWT) caused by magnetic surface plasmon resonance of the magnetic photonic crystals (MPC). We found that wide-band OWT could be obtained using ferrite rods with larger normalized radius and suppressing the bulk modes of MPC in the frequencies where the edge and bulk modes coexist. We verified that bias magnetic field tunes the frequencies of OWT but has little effects on its bandwidth by experiments, and a simple way is proposed to suppress the bulk modes by introducing air defect near the edge of the MPC and experimentally demonstrated its effectiveness. This work provides a way toward practical applications for wide-band tunable one-way devices.

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Acknowledgments

This work was supported by the NSFC (6130106, 61271080 and 61071007) and RFDP (20110091110030, 20100091120045). R.X.W. thanks partial support from STP of Jiangsu Province (BK2012722) and Jiangsu Key Laboratory of Advanced Techniques for Manipulating Electromagnetic Waves.

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Authors and Affiliations

  1. School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China

    Zhen Li, Rui-xin Wu, Yin Poo & Qing-bo Li

  2. Laboratory of Optical Physics, National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing, 10190, China

    Rong-juan Liu & Zhi-yuan Li

Authors
  1. Zhen Li
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  2. Rui-xin Wu
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  3. Yin Poo
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  4. Qing-bo Li
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  5. Rong-juan Liu
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  6. Zhi-yuan Li
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Correspondence to Rui-xin Wu.

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Li, Z., Wu, Rx., Poo, Y. et al. An experimental study on the bandwidth and tunability of MSP-based one-way transmission. Appl. Phys. A 117, 451–454 (2014). https://doi.org/10.1007/s00339-014-8680-0

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  • DOI: https://doi.org/10.1007/s00339-014-8680-0

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