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Optical computing

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  • Researchers build an all-optical transistor

    An optical switch that can be turned on by a single photon could point toward new designs for both classical and quantum computers.

    July 4, 2013
  • Research update: Multiple steps toward the ‘quantum singularity’

    Over three days in December, four research groups announced progress on a quantum-computing proposal made two years ago by MIT researchers.

    January 18, 2013
  • Riding herd on photons

    A new ‘metamaterial’ prevents electromagnetic waves from reflecting backward, pointing the way toward computer chips that move data with light.

    August 3, 2012
  • Microchips’ optical future

    To keep energy consumption under control, future chips may need to move data using light instead of electricity — and the technical expertise to build them may reside in the United States.

    February 15, 2012
  • Important step toward computing with light

    Research at MIT produces long-sought component to allow complete optical circuits on silicon chips.

    November 23, 2011
  • First germanium laser

    New results from MIT’s Electronic Materials Research Group bring us closer to computers that use light instead of electricity to move data.

    February 4, 2010