The assignee for this patent, patent number 8630041, is
Reporters obtained the following quote from the background information supplied by the inventors: "In holographic information storage, an entire page of information is stored at once as an optical interference pattern within a, photosensitive optical material. This is done by intersecting two coherent laser beams within the storage material. The first, called the data beam or signal beam, contains the information to be stored; the second, called the reference beam, is designed to be simple to reproduce--for example, a simple collimated beam with a planar wavefront.
"The resulting optical interference pattern causes chemical and/or physical changes in the photosensitive medium: a replica of the interference pattern is stored as a change in the absorption, refractive index, or thickness of the photosensitive medium. When later illuminated with one of the waves used to create it, the interference pattern causes some of the incident light to be refracted such that the second wave is recreated. Thus, illuminating the interference pattern with the reference wave reconstructs the data beam, and vice versa."
In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "In one implementation, a data storage assembly is presented. The holographic data storage assembly comprises a data storage region and a bi-layered antireflective coating. An inner layer of the antireflective coating comprises diamond like carbon. An outer layer is disposed over the inner layer.
"In another implementation, a data storage assembly is presented where the data storage assembly comprises a data storage region and a tri-layered antireflective coating. A middle layer of the tri-layered antireflective coating comprises either diamond like carbon, ZrO.sub.2; or Ta.sub.2O.sub.5.
"Another implementation, a data storage assembly is presented where a holographic data storage assembly comprises a data storage region and a layered antireflective coating wherein one of the layers of the antireflective coating comprises either diamond like carbon, ZrO.sub.2; or Ta.sub.2O.sub.5."
For more information, see this patent: Bates,
Keywords for this news article include: Information Technology, Information and
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