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Color Nanofilter Advances Displays

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ANN ARBOR, Mich., Sept. 16, 2010 — In a step toward more efficient, smaller and higher-definition display screens, a University of Michigan professor has developed a color filter made of nanothin sheets of metal with precisely spaced gratings. An optical microscopy image shows seven color filters illuminated by white microscope light. (Images: Jay Guo) The gratings, sliced into metal-dielectric-metal stacks, act as resonators. They trap and transmit light of a particular color, or wavelength, according to Jay Guo, an associate professor in the department of electrical engineering and computer science. A dielectric is...Read full article

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    Published: September 2010
    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.
    AmericasbacklightsBasic Sciencecolor filterCommunicationscomputer scienceConsumerDARPADisplayselectrical engineeringelectrode-laced glassgratingshigh-resolution displaysindustrialintellectual propertyiPhone 4Jay GuoLCDsLight Sourcesliquid crystal displaysmetal sheetsmetal-dielectric-metalMicroscopynanonanostructuringnanothinNature Communicationspixel componentspolarizersResearch & Technologyresonatorsspectral imagingUniversity of MichiganUS Air Force Office of Scientific Research

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