Holographic Technology

Holographic technology involves true 3-D recording of information. The confidential information frame components consist of a laser, a Spatial go down Modulator (SLM), memory board media, detector and transform optics. Fig. 1 elaborate schematically the elements of holographic recording and rake out of info. info argon stored holographically by recording in the storage middling the optical affray form that is created by mixing an encoded data ventilate with a perspicuous reference radio pecker. The data argon conveniently encoded as level binary rogues of bright and fatal spots (corresponding to the 1s and 0s of the digital data) exploitation a SLM, a wind that acts as a order of independent light valves. For read out, a laser beam equivalent to the reference beam is projected onto the save interference pattern in the media, and the diffracted beam carrying the reconstructed data page is imaged onto a detector. In the commercialised product, lasers will inte ract with gyrate disk media similarly to CD or DVD systems. very high data densities (>100 bits per squ are toes micron versus about 10 bits/sq. micron for most magnetic hard drive products) are achieved by optically multiplexing the put down pages, allowing numerous pages to be stored at bottom a bingle small spatial region of the media.

The baron to multiplex recorded pages is derived from use of the thickness (3rd dimension) of the media. Consequently, CAPACITIES OF >100 GB atomic number 18 ACHIEVABLE in half-millimeter thick media IN A superior 5.25-inch DIAMETER DISK FORMAT for our introductory products. Additionally, data place can be significantly enhanced since data are stored and canalisered as pages of informat! ion (ca. 1 million bits per page), compared with sequential conveyancing of single bits from conventional storage technologies. DATA RATES OF >750 MB/sec ARE POSSIBLE FROM A SINGLE HEAD. If you pauperism to get a full essay, order it on our website: OrderEssay.net

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