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  • The Discovery of the Cosmic Microwave Background
    Article - 18 Aug 2014
    An accidental discovery by Robert Wilson and Arno Penzias in 1964 changed the entire landscape of cosmology and established the concept of a big bang as a keystone in our understanding of how the...
  • Füchtbauer–Ladenburg Equation
    Article - 11 Apr 2014
    Füchtbauer–Ladenburg equation is used for calculating the stimulated emission cross-sections of the laser gain medium.
  • Gouy Phase-Shift - Explanation and Principle
    Article - 11 Apr 2014
    The Gouy phase shift is a popular axial phase shift that occurs in a converging light wave when it passes through its focus in propagating from -‡ to +‡ . The Gouy phase shift is an additional phase...
  • B-Integral - Definition and Significance
    Article - 9 Apr 2014
    B-Integral is defined as the measure of the non-linear phase shift of light in devices like amplifiers. B-Integral is a term that is specific to non-linear optics. The non-linear shift of the laser...
  • Superpulse Lasers - Definition and Applications
    Article - 14 Mar 2014
    Superpulse is a specific waveform commonly used in CO2 laser systems either in a pulsed or continuous pattern. Superpulsed lasers are capable of emitting several thousand bursts of power per second.
  • Radiance - Deinition and Introduction
    Article - 14 Mar 2014
    Radiance of a source is the power that is radiated from a surface within a solid angle and passing through a cross-sectional area. Radiance may be described as the power traversing at a point in a...
  • An Introduction to Bandwidth-Distance Product
    Article - 12 Mar 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 Profiler - Definition and Applications
    Article - 12 Mar 2014
    Measurement of the optical beam profile is of critical importance in a number of laser applications.
  • An Introduction to Attenuation
    Article - 27 Feb 2014
    Attenuation is defined as the gradual loss in the intensity of any kind of flux when it passes through a medium.
  • Toric Lens - Definition and Applications
    Article - 6 Feb 2014
    Toric lens is a special type of lens having two different focal length and optical power in orientations that are perpendicular to each other.

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