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Excelitas Technologies Corp. - X-Cite Vitae LB 11/24

Nanolaser Operates Below 3-D Diffraction Limit

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AUSTIN, Texas, July 26, 2012 — Growing a smooth layer of silver onto a silicon substrate has improved the performance of nanolasers, a discovery that could lead to the emergence of nanophotonic devices with applications ranging from computing to medicine. Miniaturizing semiconductor lasers is crucial for the development of faster, smaller and lower-energy photon-based technologies such as ultrafast computer chips; highly sensitive biosensors for detecting, treating and studying diseases; and next-generation communication technologies. Such photonic devices could use nanolasers to generate optical signals and...Read full article

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    Published: July 2012
    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.
    optical communications
    The transmission and reception of information by optical devices and sensors.
    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...
    spaser
    A spaser (surface plasmon amplification by stimulated emission of radiation) is a nanoscale device that generates coherent optical radiation at nanometer-scale dimensions. It is analogous to a laser but operates on the principles of surface plasmon resonance (SPR) rather than traditional optical gain mechanisms. Surface plasmons: Surface plasmons are collective oscillations of free electrons at the interface between a metal and a dielectric material, typically occurring when light...
    3-D diffraction limitAmericasAsia-Pacificatomic smoothnessBasic ScienceBiophotonicsbiosensorsChih-Kang Shihcommunication technologiesCommunicationsgallium nitride nanorodgreen laserImagingLaserslow threshold lasernanonanolasersNanorodsNational Tsing Hua Universityon-chip communication systemoptical communicationsphotonic devicesphotonicsplasmonsResearch & Technologysemiconductor laserssemiconductorsSensors & DetectorsShanjr Gwosilicon substratespaserTexasultrafast computer chipsUniversity of Texas at Austin

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