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Huge enhancement of magneto-optical Faraday effect by localization of light and its applications

Research Project

Project/Area Number 09650356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionTohoku University

Principal Investigator

INOUE Mitsuteru  Tohoku Univ., Research Inst.of Electrical Communication, Assoc.Prof., 電気通信研究所, 助教授 (90159997)

Co-Investigator(Kenkyū-buntansha) ABE Masanori  Tokyo Inst.of Tech., Dept.of Physical Electronics, Prof., 工学部, 教授 (70016624)
FUJII Toshitaka  Tohoku Univ., of Tech., Dept.of Electrical & Electronic Engng., Prof., 工学部, 教授 (90023168)
ARAI Ken Ichi  , 教授 (40006268)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywordslocalization of light / magneto-optical effect / photonic crystal
Research Abstract

(1) Enhancement of magneto-optical Faraday and Kerr effects due to localization of light
Theoretical calculations revealed that the enhancement of magneto-optical effect associated with the localization of light is caused by the slight difference in localization wavelengths of fight-hand and left-hand circular polarized lights that are eigenmodes of lights in a magnetic film with magnetization parallel to the propagation direction of light. The computational results can be also explained from the theory, whose results coincide with the numerical results completely.
Based on these results, multilayer films that support the strong localization of light were investigated. It was found that the films with microcavity structures can support the strong localization of light and, as a result, the films exhibit considerably large magneto-optical effects. The localization effect of light in the multilayer films closely relates to the localized mode in the one-dimensional photonic crystals, and th … More e mechanism of the localization effect and the resultant magneto-optical effect of the one-dimensional photonic crystals composed of magnetic materials (magnetophotonic crystals) were discussed in detail.
(2) Fabrication of magneto-optical microcavities with Co, amorphous TbFe, or rare-earth iron garnet films, and their properties
Based on the above results, films with (SiO_2/SiN)k/Co/(SiN/SiO_2)^k, (SiO_2/SiN)^k/a-TbFe/(SiN/SiO_2)^k, (SiO_2/Ta_2O_5)^k/Bi : DyIG/(Ta2O5/SiO2) structures were fabricated by means of RF sputtering and their optical and magneto-optical properties were investigated. These films showed optical and magneto-optical properties that coincide the above theoretical results quantitatively very well. In particular, the films supporting the strong localization of light showed large magneto-optical Faraday or Kerr effects, whose rotation angles are approximately 100 times larger than those of conventional magnetic single-layer films. These results indicate that the use of the localization of light is effective for realizing various magneto-optical devices.
(3) Magnetophotonic crystals
The multilayer films investigated in this study can be regarded as one-dimensional photonic crystals with spin-dependent optical properties (magnetophotonic cyrstals). From this respect, relation between the above films and the one-dimensional dielectric photonic crystals was studied. As a result, it is concluded that, in the magnetophotonic crystals with ordered and/or disordered structures, magneto-optical effect can be enhanced by the use of localization of light, From these results, two- and three-dimensional magnetophotonic crystals become very attractive, though their fundamental properties are still unclear. Then, further studies on magnetophotonic crystals with higher dimensions are necessary. Less

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] M.INOUE, T.FUJII, K.I.ARAI, and M.ABE: "HUGE ENHANCEMENT OF MAGNETO-OPTICAL FARADAY EFFECT IN YIG FILMS WITH DISORDERED MULTILAYER STRUCTURES" Journal of Magnetics Society of Japan. 22. 141-143 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 井上光輝、荒井賢一、藤井壽崇、阿部正紀: "遺伝的アルゴリズムによる積層構造の乱れた磁気光学多層膜の設計" 日本応用磁気学会誌. 22. 321-324 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 井上光輝: "乱れた系における光局在と磁気光学効果" 日本応用磁気学会誌. 22. 1105-1110 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.I.Arai, T.Fujii and M.Abe: "Magneto-optical properties of one-dimensional photonic crystals composed of magnetic and dielectric layers" Journal of Applied Physics. 83. 6768-6770 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.I.Arai, T.Fujii and M.Abe: "One-dimensional magneto-photonic crystals" Journal of Applied Physics. in press. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.Matsumoto, K.I.Arai, T.Fujii and M.Abe: "Preparation and properties of magneto-optical micro-cavities composed of Co thin film and dielectric multilayers" Journal of Magnetic Materials and Magnetics. in press. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, T.Yamamoto, Lim Pang Boey, K.Nishimura and T.Fujii: "Magneto-optical Faraday effect of discrete magnetic films with one-dimensional quasiradom array structures" IEEE Trans.Magn.vol.33, No.2. 1564-1567 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue and T.Fujii: "A theoretical analysis of magneto-optical Faraday effect of YIG films with random multilayer structures" J.Appl.Phys.vo.81, No.8. 5659-5661 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, L.Lim Pang Boey, T.Yamamoto, and T.Fujii: "Magneto-optical Faraday effect of YIG films with random multilayer structures" J.Phys.IV France. vol.7. C1-727, C1-728 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue and T.Fujii: "Huge enhancement of magneto-optical Faraday effect by the localization of light in films with disordered multilayer structures" J.Magn.Soc.Jpn.vol.21, No.4-1 (in Japanese). 187-192 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Fujii, S.Nanpei, M.Inoue, and K.I.Arai: "Preparation of high bismuth and gallium substituted yttrium iron garnet films by coating gel on glass substrate" J.Magn.Soc.Jpn.vol.22. 200-202 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.I.Arai, T.Fujii and M.Abe: "Genetic-algorithm based design of magneto-optical films with disordered multilayer structures" J.Magn.Soc.Jpn.vol.22, No.4-2. 321-324 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue: "Localization of light in disordered systems and magneto-optical effect" J.Magn.Soc.Jpn.vol.22, No.7. 1105-1110 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.I.Arai, T.Fujii and M.Abe: "Huge enhancement of magneto-optical Faraday effect in YIG films with disordered multilayer structures" J.Magn.Soc.Jpn.vol.22, S1. 141-143 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Satoh, K.Yamaguchi, T.Fujii and M.Inoue: "Magnetic and magneto-optical properties of cobalt nano particles dispersed in plastics" J.Magn.Soc.Jpn.(in press) (in Japanese). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.I.Arai, T.Fujii, and M.Abe: "One-dimensional magnetophotonic crystals" J.Appl.Phys.vol.85, No.8 April (in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Inoue, K.Matsumoto, K.I.Arai, T.Fujii, and M.Abe: "Preparation and properties of magneto-optical micro-cavities composed of Co thin film and dielectric multilayers" J.Magn.Magn.Mat.(in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.INOUE,T.FUJII,K.I.ARAI,and M.ABE: "HUGE ENHANCEMENT OF MAGNETO-OPTICAL FARADAY EFFECT IN YIG FILMS WITH DISORDERED MULTILAYER STRUCTURES" Journal of Magnetics Society of Japan. 22. 141-143 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 井上光輝、荒井賢一、藤井嘉崇、阿部正紀: "遺伝的アルゴリズムによる積層構造の乱れた磁気光学多層膜の設計" 日本応用磁気学会誌. 22. 321-324 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 井上光輝: "乱れた系における光局在と磁気光学効果" 日本応用磁気学会誌. 22. 1105-1110 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Inoue,K.I.Arai,T.Fujii and M.Abe: "Magneto-optical properties of one-dimensional photonic crystals composed of magnetic and dielectric layers" Journal of Applied Physics. 83. 6768-6770 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Inoue,K.I.Arai,T.Fujii and M.Abe: "One-dimensional magneto-photonic crystals" Journal of Applied Physics. in press. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Inoue,K.Matsumoto,K.I.Arai,T.Fujii and M.Abe: "Preparation and properties of magneto-optical micro-cavities composed of Co thin film and dielectric multilayers" Journal of Magnetic Materials and Magnetics. in press. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 井上 光輝: "乱れた積層構造をもつ多層薄膜の光局在化による磁気光学ファラデー効果の巨大エンハンスメント" 日本応用磁気学会誌. 21. 187-192 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mitsuteru Inoue: "A THEORETICAL ANALYSIS OF MAGNETO-OPTICAL FARADAY EFFECT PF YIG FILMS WITH RANDOM MULTILAYER STRUCTURES" Journal of Applied Physics. 81. 5659-5661 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.INOUE: "HUGE ENHANCEMENT OF MAGNETO-OPTICAL FARADAY EFFECT IN YIG FILMS WITH DISORDERED MULTILAYER STRUCTURES" Journal of Magenetics Society of Japan. (in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 井上 光輝: "遺伝的アルゴリズムによる積層構造の乱れた磁気光学多層膜の設計" 日本応用磁気学会誌. (in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Inoue: "MAGNETO-OPTICAL PROPERTIES OF ONE-DIMENSIONAL MAGNETO-PHOTONIC CRYSTALS" Journal of Applied Physics. (in press). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 井上 光輝: "一次元磁性フォトニック・クリスタルの磁気光学効果の解析" 電気学会マグネティックス研究会資料. MAG91-111. (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2021-10-13  

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