Optical recording medium and optical recording method
OwnerShuji Tsukamoto, Hiroyasu Inoueinventors
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Abstract
An optical recording medium having a good power margin property during recording and good jitter during reading is provided. In an optical recording medium, a Ti recording layer that includes Ti as a main component and Al as an addition component and a first Si recording layer that is arranged adjacent to a cover layer side of the Ti recording layer and includes Si as a main component are stacked between a substrate and the cover layer.
Claims12
An optical recording medium comprising:
- a substrate;
- a cover layer;
- a Ti recording layer that is arranged between the substrate and the cover layer and includes Ti as a main component and Al as an addition component;
- and
- a first Si recording layer that is arranged adjacent to a cover layer side of the Ti recording layer and includes Si as a main component.
An optical recording method for recording information by irradiating a laser beam on an optical recording medium having a substrate, a cover layer, and an information recording layer between the substrate and the cover layer, the method comprising:
- providing, as the information recording layer, a Ti recording layer that includes Ti as a main component and Al as an addition component, and a first Si recording layer that is arranged adjacent to the cover layer side of the Ti recording layer and includes Si as a main component;
- and
- chemically or physically modifying the Ti recording layer and the first Si recording layer simultaneously by heat from the laser beam.
Dependencies are inferred from the claim text.