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Results 871 - 880 of 1297 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....
  • 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.
  • Pechan Prism: Definition and Working Principle
    Article - 18 Jul 2014
    Pechan prisms comprise two air-spaced components, and have the ability to revert (flip horizontally) or invert (flip vertically) an image, depending upon it's orientation. It can be used in...
  • The Advantages and Applications of the Mach-Zehnder Interferometer
    Article - 1 Aug 2014
    The Mach–Zehnder interferometer is a simple highly configurable device used for demonstrating interference by division of amplitude.
  • Fresnel vs Fraunhoffer Diffraction
    Article - 1 Aug 2014
    Diffraction is the slight bending of light as it travels around the edges of an object/slit or after passing through an opening.

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