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Color Holograms Generated Using White Light

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TOKYO, April 7, 2011 — A new technique uses ordinary white light instead of a laser to make three-dimensional color holograms that can be viewed at any angle, something that could prove useful in the next generation of 3-D displays, Japanese researchers report. Three-dimensional, true-color image of an apple generated using a new technique of making holograms that allows the image to be viewed using ordinary white light. (Images: ©Science/AAAS) The method differs from conventional techniques because it’s based on the activity of electrons on the surface of a metal film. Current approaches...Read full article

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    Published: April 2011
    Glossary
    image
    In optics, an image is the reconstruction of light rays from a source or object when light from that source or object is passed through a system of optics and onto an image forming plane. Light rays passing through an optical system tend to either converge (real image) or diverge (virtual image) to a plane (also called the image plane) in which a visual reproduction of the object is formed. This reconstructed pictorial representation of the object is called an image.
    white light
    Light perceived as achromatic, that is, without hue.
    3-DAsia-PacificConsumerDisplayshologramsimageImaginginterference patternJapanlight wavesMiyu OzakiplasmonsResearch & TechnologyRIKENScience magazinesurface plasmonsTokyo Denki Universitywhite lightLasers

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