Ensuring data integrity during an extremely long period of time, at least one million years. For comparison, the most intensive today Blu-ray discs have a maximum volume of 128 GB, and provide data for up to seven years.
Ucenye from the University of Southampton (University of Southampton) and technological University of Eindhoven (Eindhoven University of Technology) have developed a new technology of optical data entry, via kotoroje can Save Huge Volumes information, up to 360 TB on one disk,
These new disks made of doped silica glass,written in the form of nanostructures, self-assembled under the influence of light-speed laser pulses that last a few femtoseconds time. Extremely noteworthy is the fact that the data in the new method of recording encoded five dimensions - the three traditional, spatial, and two additional -size and orientation of nanostructures created by laser light.
Each prototype drive has three information layers with pre-prepared nanostructured "points" standing at a distance of five microns (millionths of a meter) apart. Nanostructures formed by laser light influence,Material passing through the disk by changing its polarization and other characteristics which can then be identified by a simple method, a long time used in optics. One byte of data written in the ROM occupies a volume five cubic microns, and the disk thickness is 1.2 millimeters, can contain up to 400 data layers.The disc material can withstand without loss of information exposure to temperatures up to 1000 degrees Celsius, ensuring data integrity almost indefinitely. These characteristics were confirmed using a prototype of the optical disk on which the test has been written text file.This development was carried out by researchers from the University Research Center of Optoelectronic s (University Optoelectronic Research Center, ORC), led by Zang Jing (Jingyu Zhang), who wrote the following in a press
release: "We are developing a highly reliable technology for safe storage of information in the quartz glass, which in the near future will allow organizations with voluminous archives not worry about their integrity and do not update them every ten years."
Researchers have developed their technology called "Crystal memory Superman" in memory of the eternal memory crystals which were part of a series of science fiction movie about Superman.
Professor Peter Kazan sky (Peter Kazan sky), one of the leaders of the group ORC, added: "We are concerned about the fact that we have created a storage technology information and documentsthat can survive the human race. Perhaps it is these discs serve in the very distant future, the only evidence of the existence of the Earth in the past developed human civilization.
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