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

  • Jian Shen
  • , Shiyang Liu
  • , Rong Cao
  • , Xin Fan
  • , Junjie Du
  • , Huaiwu Zhang
  • , Zhifang Lin
  • , Siu Tat Chui
  • , John Q. Xiao*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

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.

Original languageEnglish
Pages (from-to)789-793
Number of pages5
JournalApplied Physics A: Materials Science and Processing
Volume105
Issue number4
DOIs
StatePublished - Dec 2011
Externally publishedYes

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