Rapid communication

Applied Physics A

, Volume 105, Issue 4, pp 789-793

Magnetic surface plasmon-induced tunable photonic bandgaps in two-dimensional magnetic photonic crystals

  • Jian ShenAffiliated withState Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of ChinaDepartment of Physics and Astronomy, University of Delaware
  • , Shiyang LiuAffiliated withInstitute of Information Optics, Zhejiang Normal UniversitySurface Physics Laboratory, Department of Physics, Fudan UniversityBartol Research Institute, Department of Physics and Astronomy, University of Delaware
  • , Rong CaoAffiliated withDepartment of Physics and Astronomy, University of Delaware
  • , Xin FanAffiliated withDepartment of Physics and Astronomy, University of Delaware
  • , Junjie DuAffiliated withSurface Physics Laboratory, Department of Physics, Fudan UniversityBartol Research Institute, Department of Physics and Astronomy, University of Delaware
  • , Huaiwu ZhangAffiliated withState Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China
  • , Zhifang LinAffiliated withSurface Physics Laboratory, Department of Physics, Fudan UniversityBartol Research Institute, Department of Physics and Astronomy, University of Delaware
  • , Siu-Tat ChuiAffiliated withBartol Research Institute, Department of Physics and Astronomy, University of Delaware
  • , John Q. XiaoAffiliated withDepartment of Physics and Astronomy, University of Delaware Email author 

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Abstract

We experimentally studied magnetically controllable photonic band gaps (PBGs) in two-dimensional magnetic photonic crystals consisting of ferrite rods. Besides the conventional PBG that relates to Bragg scattering, two other types of PBG, resulting from magnetic surface plasmon (MSP) resonance and spin-wave resonance, respectively, are observed. The PBG due to MSP resonance is particularly interesting because of its analogy to surface plasmon in metal; furthermore, it is shown to be completely tunable by an external static magnetic field from both an experimental and a theoretical point of view.