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  • IR Versus Raman - The Advantages and Disadvantages
    Article - 2 Feb 2018
    In this article, we discuss the benefits and disadvantages of both Infrared spectroscopy (IR) and Raman spectroscopy techniques.
  • Machine Vision – A Guide to Understanding the Basics
    Article - 13 Sep 2017
    Machine vision is the use of digital sensors for digital inspection.
  • Comparisons of Microscopy Techniques
    Article - 5 May 2017
    Microscopy is a technical field that employs instruments, called microscopes, to examine minute objects that are invisible to the naked eye, by magnifying or enlarging the image of the object.
  • Maxwell's Electromagnetic Theory of Light Propagation
    Article - 16 Sep 2014
    Maxwell’s most significant scientific achievement was his electromagnetic theory of light propagation which he first presented in 1864.
  • Fresnel's Wave Theory of Light
    Article - 31 Jul 2014
    During the late 17th century, scientists were embroiled in a debate about the fundamental nature of light – whether it was a particle or wave. Sir Isaac Newton was a strong advocate of the theory that...
  • Free-Electron Laser - Definition and Applications
    Article - 11 Apr 2014
    A free-electron laser is a kind of laser that employs a beam of high-speed, relativistic electrons moving freely with an optical field via a magnetic structure.
  • Quantum Efficiency - Introduction and References
    Article - 14 Mar 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...
  • Optical Pumping - Definition and Applications
    Article - 12 Mar 2014
    Optical pumping is a process in which light energy is used to excite electrons from a lower to higher energy level. It was first developed by Alfred Kastler in the early 1950s. It is primarily used to...
  • What are Wave Optics?
    Article - 10 Feb 2014
    Wave optics, also referred to as physical optics, is the branch of optics that enables important phenomena such as interference, diffraction, and polarization to be understood.
  • Michelson Interferometer - Definition and Applications
    Article - 3 Jan 2014
    Michelson interferometer is a tool to produce interference between two beams of light. It is the most common design for optical interferometry and was invented by Albert Abraham Michelson.

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