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2004 Fiscal Year Final Research Report Summary

Surface Plasmon Resonance Enhanced Scanning Near-Field Pockels Microscope Observation of Polar Structure

Research Project

Project/Area Number 15560002
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

KAJIKAWA Kotaro  Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Department of Electronics and Applied Physics, Associate Professor, 大学院・総合理工学研究科, 助教授 (10214305)

Project Period (FY) 2003 – 2004
Keywordsnear-field optical microscope / nonlinear optics / electrooptic effect / Pockels effect / self-assembled monolayer
Research Abstract

We have developed a scanning near-field optical microscope that can image Pockels effects in ultrathin films such as a monomolecular layers. Pockels effect, sometimes called "linear electrooptic effect" is one of the second-order nonlinear optical processes that occur in a system without any inversion center under electric dipole approximation. Hence a polar structure can be probed with this technique. In addition, this microscope allows us to observe polar structure even in untrathin films because the surface plasmon resonance effect offers high sensitivity for the chance in the refractive index in a media. This promises possible observation of a small change in the refractive index i(<10^<-6>) in ultrathin films.
The features of this microscope are :
(1)an optical microscope that can prove the polar structure in a untrathin films.
(2)the observation can be preformed without any high power lasers
(3)we can make spectroscopic measurement easily.
(4)we can prove nanometer sized region using a sharp tip.
We have observed pattered dye-monomolecular layers adsorbed on a 45nm-thick thin gild film. The pattered size was 40x40μm. The Pockels images taken in the surface plasmon resonance condition were compared with the images obtained by second-harmonic generation microscopy that can also probe a polar structure, and confirmed a high correspondence between them. Although the present resolution is limited within about 10μm, it is likely that use of a sharp tip and a piezo stage with high resolution will provide much higher resolution.

  • Research Products

    (9 results)

All 2005 2004

All Journal Article (8 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Surface Plasmon Resonance-Enhanced Second-Harmonic Generation in Kretschmann Configuration2005

    • Author(s)
      Ryo Naraoka
    • Journal Title

      Optics Communications 248

      Pages: 249-256

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 高機能表面プラズモンセンサー2005

    • Author(s)
      梶川浩太郎
    • Journal Title

      未来材料 5

      Pages: 36-41

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Surface Plasmon Resonance Enhanced Second-Harmonic Generation in Kretschmann Configuration2005

    • Author(s)
      Ryo Naraoka, Haruki Okawa, Kazuhiko Hashimoto, Kotaro Kajikawa
    • Journal Title

      Optical Communications 248

      Pages: 249-256

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Highly Functional Surface Plasmon Resonance Biosensor2005

    • Author(s)
      Kotaro Kajikawa
    • Journal Title

      Miraizairyo 5

      Pages: 36-41

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Optical fiber affinity biosensor based on localized surface plasmon resonance2004

    • Author(s)
      Keita Mitsui
    • Journal Title

      Applied Physics Letters 85

      Pages: 4231-4233

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 表面プラズモン法によるバイオセンシング2004

    • Author(s)
      梶川浩太郎
    • Journal Title

      蛋白質核酸酵素 43

      Pages: 1772-1776

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Optical fiber affinity biosensor based on localized surface plasmon resonance2004

    • Author(s)
      Keita Mitsui, Yoichiro Handa, Kotaro Kajikawa
    • Journal Title

      Applied Physics Letters 85

      Pages: 4231-4233

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] surface plasmon resonance biosensing2004

    • Author(s)
      Kotaro Kajikawa
    • Journal Title

      Tanpakusitsu Kakusan Kouso 49

      Pages: 1772-1776

    • Description
      「研究成果報告書概要(欧文)」より
  • [Patent(Industrial Property Rights)] 表面プラズモン増強走査型ポッケルス顕微鏡2005

    • Inventor(s)
      梶川浩太郎
    • Industrial Property Rights Holder
      (財)理工学振興会
    • Industrial Property Number
      特許 願2005-029856
    • Filing Date
      2005-02-04
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2006-07-11  

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