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Study on Optical Properties and Applications of Liquid Crystals in Long Wavelength Regions

Research Project

Project/Area Number 06805001
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Applied materials science/Crystal engineering
Research InstitutionAKITA UNIVERSITY

Principal Investigator

SATO Susumu  Akita University, Mining College, Professor, 鉱山学部, 教授 (50005401)

Co-Investigator(Kenkyū-buntansha) NOSE Toshiaki  Akita University, Mining College, Associate Professor, 鉱山学部, 教授 (00180745)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsLiquid Crystal / Infrared / Optical Properties / Submillimeter Wave / Refractive Index / Birefringence / Absorption / 複屈折率
Research Abstract

1. Optical properties of nematic liquid crystals and their applications in infrared regions
(1) Measurement systems for the properties of nematic liquid crystals in infrared regions are constructed and transmission spectra of several substrates and liquid crystal materials are measured and evaluated.
(2) Birefringence properties of nematic liquid crystals are measured by using transmission properties in homogeneously aligned liquid crystal cells under a voltage application or the light transmission intensity ratios of an ordinary and extraordinary ray.
(3) As electrooptical effects of nematic liquid crystals, TN effects in the infrared region, electrooptical effects in absorption band of liquid crystals, polarization controlling effects by the liquid crystal cells with an axially symmetrical molecular orientation, and light scattering effects in infrared regions by liquid crystal microlens arrays are measured and discussed.
2. Optical properties of nematic liquid crystals and their applications in submillimeter wavelength regions
(1) Transmission properties at the wavelengths of 118,215 and 435 [mum] are measured by using a CH_2F_2 submillimeter wave laser that is excited by a CO_2 laser. Refractive indices for ordinary and extraordinary ray are measured by changing the tilt angle of homogeneously aligned liquid crystal cells. Absorption effects can be ignored since the liquid crystal layr is effectively thin.
(2) Transmittance of the liquid crystal microlens array cell can be modulated for about 30 [%] by applying a voltage across the cell. Phase change of lambda/8-lambda/10 (lambda=118 [mum]) corresponding to the birefringence of 0.12-0.15 can be obtained in the homogeneously aligned liquid crystal (K15) cell by applying a voltage.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Shin Masuda: "Optical Properties of a Polarization Converting Device Using a Nematic Liquid Crystal Cell" Optical Review. 2. 211-216 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 増田伸: "液晶を用いた偏光制御素子の光学的特性" 平成6年度電気関係学会東北支部連合大会講演予稿集. 1A1. 1 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 賀文濤: "近赤外領域におけるネマティック液晶セルの特性" 平成6年度電気関係学会東北支部連合大会講演予稿集. 1A2. 2 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 賀文濤: "赤外線領域におけるネマティック液晶セルの特性" 平成6年度電気関係学会東北支部連合大会講演予稿集. 2G16. 279 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 能勢敏明: "サブミリ波領域におけるネマティック液晶の基礎特性" 第21回液晶討論会講演予稿集. 1B08. 54-55 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 能勢敏明: "液晶マイクロレンズにおける分子配向と欠陥の挙動" 応用物理学会東北支部第50回学術講演予稿集. 155-156 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Toshiaki Nose: "Refractive Index of Nematic Liquid Crystals in the Submillimeter Wave Region" 16th International Liquid Crystal Conference. (発表予定). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shin Masuda: "Optical Properties of a Polarization Converting Device Using a Nematic Liquid Crystal Cell" Optical Review. Vol.2, No.3. 211-216 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shin Masuda: "Optical Properties of a Polarization Controlling Device Using a Liquid Crystal Cell" Denkikankeigakkai Touhokukshibu Rengoutaikai. 1A1. 1 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] He Wentao: "Some Properties of Nematic Liquid Crystals in Near Infrared Wavelength Regions" Denkikannkeigakkai Touhokukshibu Rengoutaikai. 1A2. 2 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] He Wentao: "Some Properties of Nematic Liquid Crystals in Infrared Wavelength Regions" Denkikannkeigakkai Touhokukshibu Rengoutaikai. 2G16. 279 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Toshiaki Nose: "Basic Properties of Nematic Liquid Crystals in the Submillimeter Wave Region" No.21 Internal Liquid Crystal Conference. 1B08. 54-55 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Toshiaki Nose: "Molecular Orientation and Behaviors of Defects in Liquid Crystal Microlens" 50th Conference on Applied Physics of Tohoku Branch. 155-156 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Toshiaki Nose: "Refractive Index of Nematic Liquid Crystals in the Submillimeter Wave Region" 16th International Liquid Crystal Conference. (to be presented). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shin Masuda: "Optical Properties of a Polarization Converting Device Using a Nematic Liquid Crystal Cell" Optical Review. 2. 211-216 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 賀 文涛: "赤外線領域におけるネマティック液晶セルの特性" 平成7年度電気関係学会東北支部連合大会講演予稿集. 279 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 能勢敏明: "サブミリ波領域におけるネマティック液晶の基礎特性" 第21回液晶討論会講演予稿集. 54-55 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 能勢敏明: "液晶マイクロレンズにおける分子配向と欠陥の挙動" 応用物理学会東北支部第50回学術講演会予稿集. 155-156 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Toshiaki Nose: "Refractive Index of Nematic Liquid Crystals in the Submilimeter Wave Region" 16th International Liquid Crystal Conference. (発表予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Masuda: "Optical Properties of Polarization Converting Device Using a Liquid Crystal Cell" Optical Review. 2(印刷中). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 増田 伸: "液晶を用いた偏光制御素子の光学的特性" 電気関係学会東北支部連合大会. 1A-1. 1- (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 賀 文濤: "近赤外線領域におけるネマティック液晶セルの特性" 電気関係学会東北支部連合大会. 1A-2. 2- (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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