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All-Optical Nanoswitch Promises Faster Computers

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PHILADELPHIA, Sept. 10, 2012 — The first all-optical photonic switch made of cadmium sulfide nanowires has not only been produced but combined with others into a logic gate for on-chip information processing, which could help bring quantum computing a step closer. An all-optical photonic nanowire switch could help bring quantum computing a step closer. Here, laser light is emitted from the end of a cadmium sulfide nanowire. (Image: University of Pennsylvania) A team at the University of Pennsylvania built upon its earlier research showing that cadmium sulfide nanowires exhibited extremely strong light-matter...Read full article

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    Published: September 2012
    Glossary
    cadmium sulfide
    An inorganic compound, yellow to orange in color, that fluoresces strongly enough when bombarded by a high-current-density electron beam to be used as a high-intensity light source.
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    AmericasBrian Piccionecadmium sulfideChang-Hee ChoCommunicationscomputinginformation processingLambert van Vugtlogic gateNAND gatenanonanowireoptical switchOpticsquantum computingResearch & TechnologyRitesh AgarwalUniversity of PennsylvaniaLasers

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