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[Author] Osamu HANAIZUMI(2hit)

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  • Frontiers Related with Automatic Shaping of Photonic Crystals

    Osamu HANAIZUMI  Kenta MIURA  Makito SAITO  Takashi SATO  Shojiro KAWAKAMI  Eiichi KURAMOCHI  Satoshi OKU  

     
    INVITED PAPER-Switches and Novel Devices

      Vol:
    E83-C No:6
      Page(s):
    912-919

    Photonic crystals have optical properties characterized by photonic bandgap, large anisotropy and high dispersion, which can be applied to various optical devices. We have proposed an autocloning method for fabricating 2D or 3D photonic crystals and are developing novel structures and functions in photonic crystals. The autocloning is an easy process based on the combination of sputter deposition and sputter etching and is suitable for industry. We have already demonstrated devices or functions such as polarization splitters and surface-normal waveguides. In this paper, we describe our latest work on photonic crystals utilizing the autocloning technology. Phase plates and polarization selective gratings for optical pick-ups are demonstrated utilizing TiO2/SiO2 photonic crystals. The technology to introduce CdS into 3D photonic crystals is also developed and photoluminescence from the introduced CdS is observed, which is the first step to realize luminescent devices with 3D confinement or high polarization controllability.

  • Observation of Blue-Light Emission from Tantalum Oxide Films Deposited by Radio-Frequency Magnetron Sputtering

    Kenta MIURA  Hiroki MIYAZAKI  Osamu HANAIZUMI  

     
    PAPER

      Vol:
    E91-C No:10
      Page(s):
    1669-1672

    We obtained blue photoluminescence from tantalum oxide films deposited by radio-frequency magnetron sputtering after annealing. The maximum peak intensity of the photoluminescence was observed from a sample annealed at 600 for 20 min, and the peak wavelength was approximately 430 nm. Tantalum oxide films that emit blue light may be useful materials for novel active optical devices utilizing Ta2O5/SiO2 multilayered photonic crystals.

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