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  • Beam Combining - Definition and Applications
    Article - 19 Jun 2014
    Beam combining is done through a number of processes in order to scale up the power and radiance of laser sources. There are a number of techniques that allow the built up of high power laser sources...
  • Plano-Convex Lens - Equation and Explanation
    Article - 29 May 2014
    A plano-convex lens is a convergent lens with one flat surface and one convex surface. It focuses parallel light rays to a positive focal point to form real images that can be manipulated using...
  • Photometer - Definition and References
    Article - 29 May 2014
    Photometer is an instrument for measuring the light intensity or optical properties of optical sources or detectors. It operates more like a transducer which converts electric current into mechanical...
  • An Introduction to Bandwidth-Distance Product
    Article - 1 Aug 2014
    Bandwidth-Distance Product is a term used to describe the transmission of light through fiber optic cables. Data transmission through fiber optic cables is limited by attenuation and dispersion.
  • Beam Divergence
    Article - 19 Sep 2014
    Beam divergence of an electromagnetic beam is defined as a measure of increase in laser beam diameter or radius with respect to the distance from an antenna aperture or optical aperture through which...
  • The Twyman Green Interferometer
    Article - 4 Aug 2014
    The Twyman-Green interferometer is an instrument for testing optical components such as lenses and prisms. It was invented and patented by English electrical engineer Frank Twyman and English chemist...
  • Phase-Contrast Microscope - Definition and Applications
    Article - 6 May 2014
    Phase-contrast microscope is a type of light microscopy that intensifies contrasts of transparent and colorless objects by influencing the optical path of light. Phase-contrast microscopy is an...
  • Exploring the Molecular Nature of Memory with Imaging Technology
    Article - 9 Sep 2014
    Wei Min, Assistant Professor at Columbia University and his team have investigated the synthesis of protein at a specific site in the tissue of the brain using a new imaging technique in order to...
  • What is Brillouin Scattering?
    Article - 11 Jul 2013
    Brillouin scattering may be described as a phenomenon of inelastic scattering of light in a physical medium brought about by thermally excited acoustical phonons. Brillouin scattering is usually...
  • What is a Beamsplitter?
    Article - 5 Jun 2013
    Beamsplitters are elements that redirect a portion of the incident beam of light and allow the rest of the light to continue in the original direction.

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