All-optical data memory: ultra-short light pulses make the GST material change from crystalline to amorphous and back. Weak light pulses read out the data. Credit: C. Rios/Oxford University
Researchers develop the first non-volatile all-optical chip memory based on phase change materials. This is an important step on the way towards optical computers. Phase change materials that change their optical properties depending on the arrangement of the atoms allow for the storage of several bits in a single cell.
Light determines the future of information and communication technology: With optical elements, computers can work more rapidly and more efficiently. Optical fibers have long since been used for the transmission of data with light...
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