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Appl Opt. 2005 May 1;44(13):2575-9.

Collinear holography.

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OPTWARE Corporation, 2-5-1 Shin-Yokohama, Kohuku-ku, Yokohama, Kanagawa 222-0033, Japan.


A novel reading and writing technology for a holographic storage system called collinear holography is developed. With this method, two-dimensional page data can be recorded as volumetric holograms generated by a reference beam and a signal beam that are bundled on the same axis and irradiated on the recording medium through a single objective lens. The multiplex recording and reconstructing process is demonstrated, and it is presented that optical configuration and the dichroic media disk structure are suitable for a compact system. This method enables us to construct a small volumetric optical disk storage system with CD and DVD upper compatibility.


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