Today’s electronic computer chips work at blazing speeds. But an alternate version that stores, manipulates, and moves data with photons of light instead of electrons would make today’s chips look like proverbial horses and buggies. Now, one team of researchers reports that it has created the first permanent optical memory on a chip, a critical step in that direction.
Ref: Integrated all-photonic non-volatile multi-level memory. Nature Photonics (2015) | DOI: 10.1038/nphoton.2015.182