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  1. No Access

    Article

    Hologram recording in glass and direct reconstruction using visible-wavelength laser beam

    We propose a method of hologram recording in a glass plate by corona charging. The holographic recording materials used in this study are conventional soda-lime glass and azobenzene polymer film. A Fourier tra...

    Daisuke Sakai, Kenji Harada, Shun-ichi Kamemaru, Daisuke Barada… in Optical Review (2009)

  2. No Access

    Article

    Hologram Recording in Various Glass Plates by Corona Charging

    We propose techniques of hologram replication in glass plates and reconstruction on another film by corona charging. A surface relief hologram on an azobenzene polymer film was recorded in the form of electric...

    Daisuke Sakai, Kenji Harada, Shun-ichi Kamemaru, Takashi Fukuda in Optical Review (2007)

  3. No Access

    Article

    Direct Fabrication of Surface Relief Holographic Diffusers in Azobenzene Polymer Films

    We propose a direct fabrication of light diffusers using azobenzene polymer films. Holographic recordings of surface relief diffusers are formed on the polymer film by exposure to an Nd:YAG laser (532 nm) thro...

    Daisuke Sakai, Kenji Harada, Shun-ichi Kamemaru, Mohamed A. El-Morsy… in Optical Review (2005)

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    Article

    Application of Surface Relief Hologram Using Azobenzene Containing Polymer Film

    Surface relief holograms are fabricated by irradiation of laser interference patterns on an azobenzene polymer film. The hologram needs no post-treatment, and can be erased by heating the films to above its gl...

    Kenji Harada, Masahide Itoh, Toyohiko Yatagai, Shun-ichi Kamemaru in Optical Review (2005)

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    Article

    Matched Spatial Filtering by Primitive Reference Patterns and Correlation Diagrams for Shape Invariant Pattern Recognition

    In this paper, twelve linear primitive reference patterns are proposed for synthesizing a matched spatial filter, known as a shape invariant filter, which can recognize all patterns with various shapes. Furthe...

    Shun-ichi KAMEMARU, Mitsuaki KOBAYASHI in Optical Review (1994)