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Broadband Light Slowed via Nanoplasmonics

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BETHLEHEM, Pa., March 22, 2011 — Plasmonic structures can slow light waves over a broad range of wavelengths, verifying the “rainbow” trapping effect, which had been predicted only recently in the theoretical studies of metamaterials. An experiment conducted by chemists at Lehigh University used focused ion beams to mill a series of increasingly deeper, nanosize grooves into a thin sheet of silver. By focusing light along this plasmonic structure, the series of grooves, or nanogratings, slowed each wavelength of optical light, capturing each color of the visible spectrum at various points along the grating....Read full article

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    Published: March 2011
    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.
    AmericasBasic ScienceBiophotonicsbiosensorsbroadband lightDmitri V. VezenovenergyFilbert J. BartoliFiltersgreen photonicsKyle WagnerLehigh UniversitymetamaterialsMicroscopynanonanogratingsnanoplasmonicsnanosize groovesoptical circuitsoptical data processingoptical lightOpticsPennsylvaniaphotovoltaicsQiaoqiang Ganrainbow trapping effectResearch & TechnologySensors & Detectorssolar cellssurface dispersion engineeringYongkang GaoYujie J. Ding

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