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1998 Fiscal Year Final Research Report Summary

Nonlinear Optical Device using Bacteriorhodopsin and Surface Plasmon Resonance and Its Applications

Research Project

Project/Area Number 09650059
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionThe Institute of Physical and Chemical Research (RIKEN)

Principal Investigator

OKAMOTO Takayuki  RIKEN,Optical Engineering Laboratory, Senior Research Scientist, 光工学研究室, 先任研究員 (40185476)

Project Period (FY) 1997 – 1998
Keywordsnonlinear optics / bacteriorhodopsin / surface plasmon / optical waveguide / dye / optical bistability / beam propagation method / gold colloid
Research Abstract

A nonlinear optical device using surface plasmon resonance was fabricated. In the device a bacteriorhodopsin film, which was prepared by a centrifuge, was deposited on a thin-silver-film coated prism surface. The resonance dip shown in the reflectance versus the angle of incidence shifted toward lower angle as the intensity of the incident beam increased. The obtained nonlinear index of refraction was n_2=-0.054cm^2/W.However, the device is unstable because the bacteriorhodopsin film shrinks and is removed with time. To solve this problem an alternative device using a leaky-mode optical waveguide, in which a dye-doped polymer film was used as a nonlinear waveguide layer, was developed. In this device the field in the waveguide is larger than that by the surface plasmon resonance. In the experiments the reflectance versus the angle of incidence was measured with argon-ion laser beam for a device using bis (4-dimethylamino-dithiobenzil) nickel doped PMMA film as the waveguide layer. The resonance angle shifted for a few mW and optical bistability was observed for a few ten mW.However, the waveguide layer is damaged for the high intensity due to a thermal effect. For the higher field enhancement the deposition of small colloidal gold particles on the waveguide was considered. It was numerically confirmed that the field between the particles and the waveguide was much enhanced. The numerical method analyzing the propagation of beams in nonlinear optical media, e. g. bacterio-rhodopsin film, using the beam propagation method was also developed. The results using this method agreed very much with the experimental ones.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 岡本 隆之 他: "Absorption measurement using a leaky waveguide mode" Opt.Rev.4. 354-357 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡本 隆之 他: "Real-time enhancement of defects in periodic patterns using photoinduced anisotropy of a bacteriorhodopsin film" Jpn.J.Appl.Phys.36. L1012-1014 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡本隆之: "エバネッセント波を用いた表層屈折率測定センサ:原理と実装" 分光研究. 47. 19-28 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡本隆之 他: "Numerical analysis of real-time holography in bacteriorhodopsin films" Opt.Eng.38. 157-163 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡本 隆之 他: "Field enhancement by a metallic sphere on dielectric substrates" Opt.Rev.6(出版-予定). (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡本 隆之 他: "速解光サイエンス辞典" オプトロニクス社, 352 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takayuki Okamoto and Ichirou Yamaguchi: "Absorption measurement using a leaky waveguide mode" Opt.Rev.4. 354-357 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayuki Okamoto, et al.: "Real-time enhancement of defects in periodic patterns using photoinduced anisotropy of a bacteriorhodopsin film" Jpn.J.Appl.Phys.36. L1012-L1014 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayuki Okamoto: "Surface refract-sensor using evanescent waves : principles and instrumentations (in Japanese)" J.Spectrosc.Soc.Jpn.47. 19-28 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayuki Okamoto, et al.: "Numerical analysis of real-time holography in bacteriorhodopsin films" Opt.Eng.38. 157-163 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayuki Okamoto and Ichirou Yamaguchi: "Field enhancement by a metallic sphereon dielectric substrates" Opt.Rev.6 to be published. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takayuki Okamoto, et al.: "Encyclopedia for optical science (in Japanese)" Optronics, Tokyo. (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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