Optical recording media having increased erasability

Details Optical recording media having increased erasability Optical recording media having increased erasability

B - Operations, Transporting

32

B

B32B 3/00 (2006.01) G11B 7/0055 (2006.01) G11B 7/24 (2006.01) G11B 7/243 (2006.01)

Patent

CA 2370836

An optical recording medium comprising one or more recording layers (30). At least one of the recording layers (30) comprising an optical phase-change memory material, the optical phase-change memory material comprising: an optical phase-change alloy; and at least one modifier element, added to the optical phase-change alloy, that increases the erasability of the optical recording medium by at least 3 dB.

L'invention concerne un support d'enregistrement optique comprenant une ou plusieurs couches supports d'information (30). Au moins une de ces couches supports d'information (30) renferme un corps mémoire à variation de phase optique, lequel est constitué d'un alliage à variation de phase optique et d'au moins un élément modificateur ajouté à cet alliage à variation de phase optique, ce qui améliore les possibilités d'effacement dudit support d'enregistrement optique d'au moins 3 dB.

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