The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Huge Enhancement of Magneto-optical Kerr Effect of One-dimensional Photonic Crystals with a Ferromagnetic Defect Layer

  • Mitsuteru Inoue (Research Institute of Electrical Communication, Tohoku University and PRESTO21, Japan Science & Technology Corpo.) ;
  • Arai, Ken-Ichi (Research Institute of Electrical Communication, Tohoku University) ;
  • Toshitaka Fujii (Department of Electrical & Electronic Engineering, Tohohashi University of Technology) ;
  • Masanori Abe (Department of Physical Electronics, Tokyo Institute of Technology)
  • Published : 2000.12.01
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Abstract

Although the rotation angle and its spectrum of the magneto-optical Kerr effect are physical quantities determined inherently by the material itself, we found that they can widely be designed by utilizing a one-dimensional photonic crystal with a ferromagnetic defect layer. By suitable choice of the film structure, the rotation angle at a designated narrow wavelength is resonantly enhanced up to as several hundred times larger as ordinary rotation angle of the magnetic. This is originated by the localization of light at the magnetic layer inside the film.

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References

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