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GRIN Plasmonics: A Path to Superfast Computing

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BERKELEY, Calif., Jan. 27, 2011 — A team of researchers with the US Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California, Berkeley, have carried out the first experimental demonstration of GRIN – for gradient index – plasmonics, a hybrid technology that opens the door to a wide range of exotic optics, including superfast computers based on light rather than electronic signals, ultrapowerful optical microscopes able to resolve DNA molecules with visible light, and “invisibility” carpet-cloaking devices. On the left is a scanning...Read full article

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    Published: January 2011
    Glossary
    electron beam
    A stream of electrons emitted by a single source that move in the same direction and at the same speed.
    gradient index
    A lens whose material refractive index varies continuously as a function of spatial coordinates in the medium. See axial gradient; radial gradient; spherical gradient.
    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 Sciencecloaking devicecomputer chip industryEinstein’s relativity theoryelectron beamgradient indexgrey-scale electron beam lithographyGRIN optics techniqueGRIN Plasmonicsindustrialisotropic dielectric materialJason ValentineLawrence Berkeley National LaboratorylensesLight Sourceslight trajectoryLuneburg and Eaton lensesMaiken MikkelsenMicroscopynanoNano-scale Science and Engineering Centernanofabrication techniqueNational Science Foundations Nano-scale Science and Engineering CenterOpticspatterning 3-D surface topographiesphotonsplasmonic devicesResearch & TechnologySuperfact computingsurface plasmon polaritonthermplasticThomas Zentgraftransformation opticstwo-dimentional opticsUniversity of California BerkeleyUS Army Research OfficeUS DoEvisible lightXiang ZhangYongmin LiuLEDs

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