• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2004 Fiscal Year Final Research Report Summary

Numerical analysis for lacarized and ehnhaneed surface plasmon polariton of near field of dumbbell-Shaped aperture in the metallic screen.

Research Project

Project/Area Number 15560030
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionGifu University

Principal Investigator

TANAKA Kazuo  Gifu University, Faculty of Engineering, Professor, 工学部, 教授 (40092944)

Co-Investigator(Kenkyū-buntansha) TANAKA Masahiro  Gifu University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (80267848)
Project Period (FY) 2003 – 2004
Keywordssurface plasmon polariton / near-field optics / simulations
Research Abstract

The characteristics of optical near-fields around subwavelength apertures in metallic screens are important in research on near-field optical (NFO) technology. The aperture-scanning near-field optical microscope (aperture SNOM) is the most notable application of this technology, and offers resolution approximately equivalent to the dimensions of the subwavelength aperture. The aperture in these applications is smaller than the cutoff radius of the modes propagating in the probe, with the result that all modes run into cutoff and the aperture emits only an extremely small fraction of the input power. The aperture diameter cannot be reduced arbitrarily because a minimum level of emission must be ensured. Low transmission, observed as low light intensity at the aperture, therefore becomes the primary factor limiting the resolution of aperture SNOM. Optimization of the optical probe is therefore of great importance for advancement of the SNOM technique.
Increasing the near-field intensity o … More f a subwavelength aperture has thus far been considered to be a trade off with smaller spot size. However, the present authors have recently proposed an I-shaped (dumbbell-shaped) aperture in a metallic screen that provides both high emission intensity and small spot size simultaneously, and have shown that this interesting characteristic is due to the surface plasmon polariton (SPP) excited inside the aperture.
In this project, the dependence of the near-field intensities of the I-shaped aperture in a thick metallic screen on various parameters are investigated in detail, and the design of the I-shaped aperture is optimized so as to obtain high near-field intensity and small spot size. The scattering of optical waves scattered by the I-shaped aperture is solved numerically and the near-field intensities and scattering cross-sections of the aperture are calculated. The solutions are obtained numerically using a volume integral equation (VIE) by generalized conjugate residual (CGR) iteration and fast Fourier transformation (FTT). Less

  • Research Products

    (11 results)

All 2004 2003

All Journal Article (11 results)

  • [Journal Article] Simulation of confined and enhanced optical near-fields for a long narrow aperture in a pyramidal structure on a thick metallic screen2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of the Optical Society of America A 21・12

      Pages: 2344-2352

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simulation of confined and enhanced optical near-fields for an I-shaped aperture in a pyramidal structure on a thick metallic screen2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of Applied Physics 95・7

      Pages: 3765-3771

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Analysis and numerical computation of diffraction of an optical field by a subwavelength-size aperture in a thick metallic screen by use of a volume integral equation2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Applied Optics 43・8

      Pages: 1734-1746

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Optimized computer-aided design of I-shaped subwavelength aperture for high intensity and small spot size2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Optics Communications 233

      Pages: 231-244

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simulation of confined and enhanced optical near-fields for a long narrow aperture in a pyramidal structure on a thick metallic screen2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of the Optical Society of America A 21-12

      Pages: 2344-2352

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Simulation of confined and enhanced optical near fields for an I-shaped aperture in a pyramidal structure on a thick metallic screen2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of Applied Physics 97-5

      Pages: 3765-3771

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Analysis and numerical computation of diffraction of an optical field by a subwavelength-size aperture in a thick metallic screen by use of a volume integral equation2004

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Applied Optics 48-3

      Pages: 1734-1746

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Simulations of nanometric optical circuits : Open-type surface Ppasmon polariton gap waveguide2003

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Japanese Journal of Applied Physics 42・6A

      Pages: L585-L588

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simulation of an aperture in the thick metallic screen that gives high intensity and small spot size using surface plasmon polariton2003

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of Microscopy 210・June

      Pages: 294-300

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simulations of nanometric optical circuits : Open-type surface pasmon polariton gap waveguide2003

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Japanese Journal of Applied Physics 42-6A

      Pages: L585-L588

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Simulation of an aperture in the thick metallic screen that gives high intensity and small spot size using surface plasmon polariton2003

    • Author(s)
      Kazuo Tanaka, Masahiro Tanaka
    • Journal Title

      Journal of Microscopy 210-June

      Pages: 294-300

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

URL: 

Published: 2006-07-11  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi