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STUDY ON OPTICAL ANIOSTROPY OF THERMALLY POLED GLASSES

Research Project

Project/Area Number 11650859
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 無機工業化学
Research InstitutionMIE UNIVERSITY

Principal Investigator

NASU Hiroyuki  Faculty of Engineering, MIE UNIVERSITY Associate Professor, 工学部, 助教授 (20189179)

Co-Investigator(Kenkyū-buntansha) HASHIMOTO Tadanori  Faculty of Engineering, MIE UNIVERSITY Research Associate, 工学部, 助手 (10271016)
KAMIYA Kanichi  Faculty of Engineering, MIE UNIVERSITY Professor, 工学部, 教授 (00024597)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥2,100,000 (Direct Cost: ¥2,100,000)
Keywordsinorganic galsses / optical nonlinearity / homogeneous glasses / glass-ceramics / second harmonic generation / space charge effect / dipole moment / thermal poling / 第2高調波 / 空間電解分極 / 光学的異方性 / 第二高調波発生 / 強誘電性
Research Abstract

Second-order optical nonlinearity dose not theoretically occure in optical isotropic materials. Thus. second-order optical nonlinearity was considered not to be observedinorganic glasses because of their optical isotropy. However, after suitable treatment, it can be observed in inorganic glasses. One of the treatments is the thermal poling of the glasses. We found second-harmonic generation from various kinds of silica and silicate glasses. There is several models to interprete the nonlinearity. Two of them are dipole orientation model and space charege model. To enhance the space charge effect, the kinds of additives comes to so impotant. Alkali ions are small and easily drift in the glasses, but the relaxation is so fast. Therefore, we add alkaline-earth oxides into the glasses in order to cause large space charge. As a result, each glass containing alkaline-earth oxide show second harmonic generation after thermal poling. From EPMA(Electron Probe Micro Analysis)data, the migration of alkali-earth ions have been observed. The degree of the migration depends on the size of alkaliearth ions and the degree of the migration increases as ion radius increases. In specific, the migration of Ba^<2+> is the largest, on the other hand that of Mg^<2+> is the smallest. The space charge effect depends on the gradient of electric fleld, and thus the most remarkable gradient can be expected in MgO, and consequently the largest secon-harmonic generation is observed in MgO containg glasses.
For glass-ceramics, we successtully prepared CdS microcrystals-doped glasses and find the secondharmonic generation. During the thermal poling treatment, the joule energy caused by the electric resistance of the glasses causes the formation of CdS high-temparature crystal phase. Thus, the intensity of secondharmonic generation of poled glasses is much larger than that of heat-treatment glass-ceramics without poling.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] 那須弘行: "熱ポーリング処理による珪酸および珪酸塩ガラスからの第二高調波発生"ニューガラス. 14(1). 12-17 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 那須弘行: "非線形光学ガラスの原理と応用"光技術コンタクト. 37(12). 788-793 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki Nasu 他: "The Influence of Matrix on the Quantum Size Effect of CdSe Microcrystalline-Doped Thin Films"Journal of Materials Science. 35(12). 3097-3103 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki Nasu 他: "Second-Harmonic Generation from Thermally Poled Mixed Alkali Silicate Glasses Containing Various Alkaline-Earth Oxides"Japanese Journal of Applied Physics. 39(12A). 6530-6534 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yoshitsugu Yamamoto 他: "Second-Harmonic Generation from Thermally Poled CdS- Microcrystals Containing Glasses"Journal of Non-Crystalline Solids. (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki Nasu 他: "Second-Harmonic Generation from Thermally Poled PbO-GeO_2 Glasses"日本セラミックス協会学術論文誌. 109(4). 359-361 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 那須弘行: "新しいフォトニクス時代の材料とデバイス、I部第5章第5節"TIC. 409 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki NASU, Takafumi IWANO, Tadanori HASHIMOTO and Kanichi KAMIYA: "The Influence of matrix on the Quantum Size Effect of CdSe Microcrysitals-Doped Thin Films."J.Mater.Sci.. Vol.35, No.12. 3097-3103 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki NASU, Yoshiyuki SUZUKI, Hiroya OHTA, Yoshitsugu YAMAMOTO, Yusuke ITO, Tadanori HASHIMOTO, Kanichi KAMIYA, Aiko NARASAKI, Katsuhisa TANAKA and Kazuyuki HIRAO: "Second-Harmonic Generation from Thermally Poled Mixed Alkali Silicate Glasses Containing Various Alkaline-Earth Oxides"Jpn.J.Appl.Phys.. Vol.39, No.12A. 6530-6534 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yoshitsugu YAMAMOTO, Hiroyuki NASU, Tadanori HASHIMOTO and Kanichi KAMIYA: "Second Harmonic Generation from Thermally Poled CdS Microcrystal-Containing Glasses"J.Non-Cryst.Colids. (in print). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki NASU, Yusuke ITO, Yoshitugu YAMAMOTO, Tadanori HASHIMOTO and Kanichi KAMIYA: "Second-Harmonic Generation from Thermally Poled PbO-GeO_2 Glasses"J.Ceram.Soc.Jpn.. Vol.109, No.4. 359-361 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki NASU: "Second-and Third-Order Harmonic Generation of Homogeneous Glasses"Recent Res.Devle.Appl.Phys.. Vol.3. 11-23 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki NASU: "Quantum Effect of Microcrystals-Nonlinear Optical Effect"J.Soc.Powder Technol.Jpn.. Vol.38, No.2. 109-114 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 那須弘行: "熱ポーリング処理による珪酸および珪酸塩ガラスからの第2高調波発生"ニューガラス. 14巻1号. 12-17 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 那須弘行: "非線形光学ガラスの原理と応用"光技術コンタクト. 37巻12号. 788-793 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hiroyuki Nasu,Takafumi Tadanic,Hoshi: "the Influence of matrix on the Quantum Size effect of CdSe Microcystals-doped thin films"Journal of Material Science. 35巻12号. 3099-3103 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hiroyaki Nasu,Yoshiyuki Suzaki,Hiroya Ohta,Yoshituga Yamamoto 他: "Second-Harmonic Generation from Thermally Poled Mixed Alkali Silicate Glasses Containing various Alkaline-Earth Oxides"Japanese Journal of Applied Physics. 39巻12A号. 6530-6539 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yoshitugu Yamamoto,Hiroyaki Nasu,Tadanori Hashimoto,Kanichi Kamiya: "Second-Harmonic Generation from Thermally Poled CdS Microcrystal-containing Glasses"Journal of Non-Crystalline soleds. (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hiroyuki Nasu, Yusuke Ito,Yoshitsugu Yamamoto,Tadanori Hashimoto Kanichi Kamiya: "Second-Harmonic Generation from Thermally Poled PbO-GeO_2 Glasses"日本セラミックス協会学術論文誌. 109巻4号. 366-368 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 那須 弘行: "熱ポーリング処理による珪酸および珪酸塩ガラスからの第2高調波発生"ニューガラス. 14巻1号. 12-17 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 那須 弘行: "非線形光学ガラスの原理と応用"光技術コンタクト. 37巻12号. 788-793 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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