DescriptionResearchers at the University of Southampton demonstrated '5D' optical data storage in nanostructured fused quartz glass, encoding data via nanoscale voids that alter the polarization and intensity of transmitted light in addition to standard 3D position, achieving a theoretical storage capacity of up to 500 terabytes per disc reported in 2016 while claiming multi-billion-year thermal stability — a laboratory demonstration, not yet a commercial product as of the mid-2020s.
Formal questionThe highest data capacity demonstrated for a single optical storage disc using laboratory 'five-dimensional' (nanostructured, multi-parameter) femtosecond laser writing techniques.
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