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Optical information recording medium, recording/reproducing method thereof and recording/reproducing apparatus

  • US 8,110,273 B2
  • Filed: 11/27/2006
  • Issued: 02/07/2012
  • Est. Priority Date: 12/02/2005
  • Status: Active Grant
First Claim
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1. An optical information recording medium comprising:

  • a transparent substrate;

    at least one information layer having a recording layer and a dielectric layer this order on said transparent substrate,wherein said recording layer includes one or more oxide base materials selected from a group consisting of Te—

    O, Sb—

    O, Bi—

    O, Ge—

    O, Sn—

    O, Ga—

    O and In—

    O, andsaid dielectric layer including greater than or equal to 60 molecule percent and less than or equal to 98 molecule percent of Zn—

    O, and greater than or equal to 2 molecule percent to less than or equal to 40 molecule percent of one or more compounds selected from a group consisting of Y—

    O, Ce—

    O, Nb—

    O, Ta—

    O, Cr—

    O and Mo—

    O.

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