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Nanoparticles Viewed in 3-D

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DAVIS, Calif., Nov. 28, 2006 -- A new x-ray microscope has been devised that can, for the first time, examine nanoparticles -- materials smaller in scale than one billionth of a meter -- in three dimensions. The device could be used to make better materials for electronics, optics and biotechnology applications. Subhash Risbud, professor of Chemical Engineering and Materials Science at the University of California, Davis; John Miao of UCLA and colleagues from Japan and Taiwan published a paper in Physical Review Letters on Nov. 21 describing the new microscope and technique. Transmission electron microscopy (TEM)...Read full article

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    Published: November 2006
    Glossary
    gallium nitride
    Gallium nitride (GaN) is a compound made up of gallium (Ga) and nitrogen (N). It is a wide-bandgap semiconductor material that exhibits unique electrical and optical properties. Gallium nitride is widely used in the production of various electronic and optoelectronic devices, including light-emitting diodes (LEDs), laser diodes, power electronics, and high-frequency communication devices. Key points about gallium nitride (GaN): Chemical composition: Gallium nitride is a binary compound...
    microscope
    An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the near end. The objective forms a real aerial image of the object in the focal plane of the eyepiece where it is observed by the eye. The overall magnifying power is equal to the linear magnification of the objective multiplied by the magnifying power of the eyepiece. The eyepiece can be replaced by a film to photograph the primary image, or a positive or negative relay...
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    3-DBiophotonicsConsumerflat-panelgallium nitrideindustrialMaterialsmicroscopeMicroscopynanomaterialsNews & Featuresphotonicsquantum dotSubhash RisbudTEMx-ray

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