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Figure 1
A photograph of 100 stacked DVDs and a sugar cube. If holographic storage achieves its expectation, one will be able to store a terabyte (1000 Gb) of data in a crystal the size of a sugar cube. Employing current commercial optical storage devices, a terabyte of data would fill more than 1000 compact discs, or over a 100 DVDs. The use of a sugar cube as a placebo here is a deliberate attempt to emphasize the fact that, although optical technology is developing rapidly, scientists are still struggling to find suitable materials for the application.

ISSN: 2053-2733
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