3D optical data storage is any form of optical data storage in which information can be recorded or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD). Much of the development of this innovation has been carried out in universities. In addition to the academic research, several companies have been set up to commercialize 3D optical data storage and some large corporations have also shown an interest in this technology. Optical storage, an electronic storage medium uses low-power laser beams to record and retrieve digital (binary) data. In optical storage technology, a laser beam encodes digital data onto an optical, or laser, disk in the form of tiny pits arranged in a spiral track on the disk's surface. No commercial product based on 3D optical storage technology has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available soon.

Suriya Stephen

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