Novel materials for non-ablative optical recording

Authors

  • Dr. Michael R. Detty,

    Corresponding author
    1. Kodak Imaging Group Office Imaging Research and Technical Development Eastman Kodak Company Rochester, NY 14650–2129 (USA)
    • Kodak Imaging Group Office Imaging Research and Technical Development Eastman Kodak Company Rochester, NY 14650–2129 (USA)
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  • Dr. James C. Fleming

    Corresponding author
    1. Kodak Imaging Group, Imaging Research and Advanced Development Eastman Kodak Company Rochester, NY 14650–2104 (USA)
    • Kodak Imaging Group, Imaging Research and Advanced Development Eastman Kodak Company Rochester, NY 14650–2104 (USA)
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Abstract

Novel materials for optical data storage based on a new recording method are described. Instead of pits or refractive index changes being produced in the recording medium, marks are the result of the generation of near -IR absorbing dyes, which leads to a change in the absorption of light from the read laser. The new materials, thin films of tellurium (IV) dihalide bound in a glass together with a sensitizing dye, undergo thermal reductive elimination of halogen on expousure to laser radiation. This technique could ind applications in electrophotographic mastering.

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