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Nanocavity Switch Boasts Low Power Use

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LAUSANNE, Switzerland, Sept. 8, 2014 — A new optical switch sets a record for minimal power use, making it a good candidate for nanophotonic circuitry, according to its creators. The silicon-based photonic crystal nanocavity (PCN) has a Q factor of 500,000. It was developed by a team of researchers from the Federal Polytechnic University of Lausanne (EPFL). the nanocavity acts as a switch, allowing or blocking the flow of light, similar to an electronic transistor. A tiny amount of incoming light is enough to cause a small change in the wavelength of the light trapped inside the cavity; this optical bi-stability is...Read full article

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    Published: September 2014
    Glossary
    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.
    EPFLEuropenanoOpticsPCNphotonic circuitsPICResearch & Technologysiliconphotonic crystal nanocavityFederal Polytechnic University of LausanneRomuald Houdre

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