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US 8,389,095 B2Granted
Optical data storage media containing substantially inert low melting temperature data layer
AssigneeBrigham Young University
InventorsDavid E. Allred, Erik C. Bard, Robert C. Davis, Douglas P. Hansen, Matthew R. Linford, Barry M. Lunt, Mark O. Worthington
Life of this patent
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Abstract
Optical information media that contain a data layer material that is substantially inert to oxidation and has a defined melting point range are disclosed. The inertness to oxidation and melting point range make the media particularly attractive for long-term information storage.
Claims22
An optical information medium comprising:
- at least one support substrate;
- at least one data layer comprising at least one data layer material, wherein:
- the data layer material is substantially inert to oxidation;
- and
- the data layer material has a melting point of about 200° C. to about 1000° C. when either in (a) bulk form, (b) as a 50 nm thin film, and/or (c) as a porous or a particulate film;
- and
- a material take-up layer adjacent the data layer, the material take-up layer having a composition and configuration suitable to receive data layer material moved out of the data layer due to writing of the data layer.
4 more elements
A method of storing digital data, the method comprising:
- providing an optical information medium comprising:
- at least one support substrate, and at least one data layer comprising at least one data layer material, wherein:
- the data layer material is substantially inert to oxidation;
- and
- the data layer material has a melting point of about 200° C. to about 1000° C. when either in (a) bulk form, (b) as a 50 nm thin film, and/or (c) as a porous or a particulate film;
- and
- writing data to the data layer by applying energy to sites in the data layer to melt the data layer material so as to cause a detectable change in the data layer.
4 more elements
Dependencies are inferred from the claim text.