'5D' memory crystal claims to store data for eternity

data 5d5D optical storage readout. (a) Birefringence measurement of the data record in three separate layers. (b) Enlarged 5×5 dots array. Pseudo colour indicated the orientation of slow axis.SPhotonix is a privately funded spin-off venture, founded upon the ground breaking research led by the inventor of 5D Memory, Peter Kazansky from the University of Southampton.