One-way electromagnetic mode at the surface of a magnetized gyromagnetic medium

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• 作者：Zaihe Yu (1)
  Zhuoyuan Wang (1)
  Linfang Shen (2)
  Xiaohua Deng (2)
  
• 关键词：one ; way mode ; surface plasmon polaritons ; waveguide ; bulk mode
• 刊名：Electronic Materials Letters
• 出版年：2014
• 出版时间：September 2014
• 年：2014
• 卷：10
• 期：5
• 页码：969-973
• 全文大小：328 KB
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• 作者单位：Zaihe Yu (1)
  Zhuoyuan Wang (1)
  Linfang Shen (2)
  Xiaohua Deng (2)
  
  1. Ningbo Institute of Technology, Zhejiang University, Ningbo, 315010, PRC
  2. Institute of Space Science and Technology, Nanchang University, Nanchang, 330031, PRC
  
• ISSN：2093-6788

文摘

The interface of magnetized gyromagnetic medium and air can sustain a surface electromagnetic mode that propagates only in one direction. This nonreciprocal phenomenon originates from the breakage of the time-reversal symmetry of the system by the application of an external DC magnetic field. Accordingly, a one-way waveguide structure is proposed, the guiding mode of which not only travels in a single direction but also is robust against boundary imperfections. The unique properties of this one-way waveguide are demonstrated through mode analysis as well as numerical simulation.