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Results 14351 - 14360 of 15338 for Light
  • Chromatic Dispersion - Definition and Applications
    Article - 15 May 2014
    Chromatic dispersion is the change in refractive index due to change in wavelength. Dispersion is the phenomenon that causes light to be separated into various colors while passing through a prism....
  • Investigators Have Identified Cell That Gives Rise to Eye Cancer
    News - 22 Oct 2007
    Investigators at St. Jude Children's Research Hospital have identified the cell that gives rise to the eye cancer retinoblastoma, disproving a long-standing principle of nerve growth and...
  • New Camera Technology Offers Unparalleled Telescope Photography
    News - 22 Oct 2007
    Traditionally, space photography has posed a great challenge to astronomers. The thickness of the Earth's atmosphere has rendered earth-based telescopes far less effective than their space-based...
  • Wavefront - Introduction and References
    Article - 29 May 2014
    A wavefront may be described as a surface over which an optical wave presents a constant phase. In other words, a wave front may be the surface over which a wave represents a crest (maximum point) or...
  • Radiant Flux - Explanation and References
    Article - 29 May 2014
    Radiant flux is the energy per unit time that is radiated from an optical source, expressed in terms of Watts.
  • Quantum Efficiency - Introduction and References
    Article - 29 May 2014
    Quantum efficiency (QE) may be defined as the fraction of incident photons that are recorded by a photo detector. The quantum efficiency of a photosensitive device is measured in terms of electrons...
  • Laser Mode Locking - Theory and Applications
    Article - 29 May 2014
    Mode locking is a technique used to obtain ultra short pulses from lasers. Lasers that are mode locked are capable of producing pulses having pulse widths in the order of sub-pico seconds or even...
  • What is a Lambertian Surface?
    Article - 8 Oct 2014
    A Lambertian surface for reflection is a surface that appears uniformly bright from all directions of view and reflects the entire incident light. Lambertian reflectance is the property exhibited by...
  • Aiming Beam and Coaxial Laser Beam
    Article - 19 Sep 2014
    An aiming beam is a laser beam (or any other light source) which is used as a light for guiding.
  • KU and K-State Will Use Dark Fiber For Expansion of Network Systems
    News - 11 Oct 2007
    A new agreement between the University of Kansas and Kansas State University provides researchers, students and faculty access to an unused fiber optic cable that runs alongside Interstate 70 in...

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