Optical storage medium, method for preparing optical storage medium, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsJingsong Wei, Jun Xu, Yang Wang, Renqi Liu, Hongwei Tang
Life of this patent
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Abstract
An optical storage medium, a method for preparing an optical storage medium, and a system are provided. In this application, the optical storage medium includes a substrate and at least one data layer, the data layer includes a recording layer and a spacer layer, the recording layer is located on the spacer layer, and the data layer is located above the substrate. The recording layer may store data, the recording layer includes an area in which a phase change material is distributed and an area in which no phase change material is distributed, and the two different areas may indicate different data.
Claims19
An optical storage medium comprising:
- a substrate and a plurality of data layers, wherein the plurality of data layers comprise a data layer, wherein the data layer is located above the substrate, and wherein a quantity of the plurality of data layers is not less than 30 and is not greater than 100;
- wherein the data layer comprises a recording layer and a spacer layer, and the recording layer is located on the spacer layer;
- and
- wherein the recording layer is configured to store data, the recording layer comprises an area in which a phase change material is distributed and an area in which no phase change material is distributed, and the area in which the phase change material is distributed and the area in which no phase change material is distributed indicate different data.
A method for preparing an optical storage medium comprising:
- preparing a first spacer layer above a substrate;
- growing a first phase change layer on the first spacer layer, wherein the first phase change layer comprises a phase change material;
- writing to-be-stored first data on the phase change material at the first phase change layer using a laser;
- and
- clearing, from the first phase change layer, the phase change material on which the first data is not written, wherein the optical storage medium comprises a quantity of a plurality of data layers that is not less than 30 and is not greater than 100, and wherein the plurality of data layers comprise a data layer that includes the first spacer layer and the first phase change layer.
A storage system comprising:
- an optical storage medium and a data reading apparatus;
- wherein the optical storage medium comprises a substrate and a plurality of data layers, wherein the plurality of data layers comprise a data layer, and the data layer is located above the substrate;
- wherein the data layer comprises a recording layer and a spacer layer, and the recording layer is located on the spacer layer;
- and
- wherein the recording layer is configured to store data, the recording layer comprises an area in which a phase change material is distributed and an area in which no phase change material is distributed, and wherein the area in which the phase change material is distributed and the area in which no phase change material is distributed indicate different data;
- and
- wherein the data reading apparatus is configured to read data from the optical storage medium.
Dependencies are inferred from the claim text.