Frontiers Related with Automatic Shaping of Photonic Crystals

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

IEICE TRANSACTIONS on Electronics   Vol.E83-C   No.6   pp.912-919
Publication Date: 2000/06/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Advanced Optical Devices for Next Generation High-Speed Communication Systems and Photonic Networks)
Category: Switches and Novel Devices
autocloning,  TiO2/SiO2 photonic crystal,  phase plate,  polarization selective grating,  CdS,  photoluminescence,  

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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.