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Results 18241 - 18250 of 18286 for Imaging
  • What is Four-Wave Mixing?
    Article - 1 Oct 2014
    Four-wave mixing (FWM) is a non-linear optical process where two other waves are produced by the interaction of two wavelengths. Four-wave mixing can take place in any kind of material.
  • What is an Optical Chopper?
    Article - 10 Jun 2013
    An optical chopper is a device that interrupts a light beam at periodic intervals. By varying the frequency of operation of the chopper it can be used for various applications. The first ever optical...
  • Determining How Much Light Exposure is Healthy
    News - 6 Sep 2007
    Scientists have long known that the human body runs like clockwork, guided by a circadian system that responds to daily patterns of light and darkness. Now a team of researchers is developing a...
  • Photonic Quantum Technology Research Gets Needed Boost
    News - 29 Aug 2007
    Photonic quantum information science could soon move out of the laboratory and be used in future technologies like quantum computers thanks to a grant of over £1 million. The EPSRC five-year...
  • Additives Enhanced Laser Marking and Laser Welding of Clear Plastics
    News - 29 Aug 2007
    The marking and transmission welding of transparent plastics is an interesting subject which is of increasing importance for many plastic products. Nowadays it is possible to achieve a good marking...
  • Restoring Sight, One Pixel at a Time
    News - 26 Aug 2007
    Frontiers in Optics 2007 (FiO), the 91st Annual Meeting of the Optical Society of America, will be held from Sept. 16-20 in San Jose, Calif., alongside Laser Science XXIII, the annual meeting of the...
  • X-Rite Acquire Color Matching Specialist
    News - 24 Aug 2007
    X-Rite, Incorporated a leading provider of color solutions for measuring, formulating, matching, and simulating color, announced today it has entered into a definitive agreement to purchase Pantone,...
  • OSRAM Opto Semiconductors Showcases Infrared Golden DRAGON LED at Photonics West 2006
    News - 27 Jul 2007
    OSRAM Opto Semiconductors Inc. today announced a groundbreaking addition to its Golden DRAGON™ family of high-performance, light-emitting diodes (LEDs). The new infrared (IR) Golden DRAGON...
  • NASA Researchers Probe Curious Behavior of Moondust
    News - 24 Jul 2007
    Each morning, Mian Abbas enters his laboratory and sits down to examine--a single mote of dust. Zen-like, he studies the same speck suspended inside a basketball-sized vacuum chamber for as long as 10...
  • Exponential Decay Lifetimes of Excitons in Individual Single-Walled Carbon Nanotubes
    News - 24 Jul 2007
    Carbon nanotubes have shown great promise for creating single-molecule biosensors for detecting disease, mostly a result of the fact that the electrical conductivity of a carbon nanotube changes...

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