Institute for Materials Chemistry and Engineering, Kyushu University


LAST UPDATE 2017/02/25

  • 研究者氏名
    Researcher Name

    山本和広 Kazuhiro YAMAMOTO
    助教 Assistant Professor
  • 所属
    Professional Affiliation

    Institute for Materials Chemistry and Engineering, Kyushu University

    Division of Advanced Device Materials
  • 研究キーワード
    Research Keywords

    Near-field optics
    Surface plasmon
    Optical waveguide
    Nano/micro fabrication
Research Subject
Development of integrated photonic-electronic hybrid function using nano structures and

研究の背景 Background


Recently, optical devices are widely used in information and communication technology based on their fast and low-loss properties compared with electronic devices. However, the sizes of optical waveguides are limited by the diffraction limit of light (about the wavelength of light (~1μm) in contrast to the fact that the width of electronic wiring already reaches several nanometers. To overcome these size-mismatch problems, the novel technologies to transmit and control light field at nano-scale are required.

研究の目標 Outcome


To excite nano-scale optical field below the diffraction limit and extract the near-field information to macroscopic optics, I design and realize novel nano optical systems. Using surface plasmonic structures and photonic nanostructures including nanofiber, I enhance the electric field and locality. Furthermore, I search suitable materials for the purpose and aim to realize the effective optical sensing and information technologies and photonic-electronic hybrid devices overcoming the size-mismatch problem.

研究図Research Figure

Fig.1. Integrated nano optical fiber. SEM image of fabricated structure and microscopic liquid sensing. Fig.2. Fiber-based surface plasmon focusing structure. Strong field enhancement is realized at nanogap. Fig.3. Phase-controled planar plasomonic waveguide. Plasmonic superfocusing phenomena can be control by incident light.

文献 / Publications

Proc. of SPIE, 8632, 863228-1-863228-8 (2013), Proc. of SPIE, 8622, 86221K-1-86221K-6 (2013), Mater. Res. Soc. Symp. Proc., 1182, 1182-EE13-05 (2009), Plasmonics, 10, 165-182 (2015)