Multilayer optical recording medium and optical recording method
A multilayer optical recording medium including at least multiple information layers each having at least a phase change recording layer capable of recording information by laser irradiation and a reflection layer, wherein each information layer other than the innermost information layer as seen fro...
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Sprache: | eng |
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Zusammenfassung: | A multilayer optical recording medium including at least multiple information layers each having at least a phase change recording layer capable of recording information by laser irradiation and a reflection layer, wherein each information layer other than the innermost information layer as seen from a side of the laser irradiation has at least a lower protection layer, the phase change recording layer, an upper protection layer, the reflection layer and an optical transmission layer, the upper protection layer and the optical transmission layer in each information layer other than the innermost information layer as seen from the side of the laser irradiation are composed of an Sn oxide-containing material and a thickness of the upper protection layer in each information layer other than the innermost information layer as seen from the side of the laser irradiation is 2 nm to 15 nm is provided. |
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