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  • What is Refraction?
    Article - 27 Sep 2007
    Refraction describes the change in direction of a wave caused by its passing through gradual changes in its medium, or by passing from one medium to another.
  • What is Schlieren Optics?
    Article - 17 Sep 2018
    Schlieren optics is an optical technique that enables the user to image small changes and non-uniformities in the refractive index of air, or other transparent media; and are most commonly used to...
  • What Happens to Your Weld When Welding with High Power Over Long Periods of Time?
    Article - 12 May 2016
    Welding with a laser is a very common process, even though a few welding applications still need customized solutions and skills.
  • Neutral Density Filter - Definition and Properties
    Article - 18 Sep 2014
    A neutral density filter is a semi-transparent glass filter used in front of a camera lens to reduce or vary the intensity of incoming light without affecting the color rendition.
  • Fizeau Interferometer - Definition and Applications
    Article - 1 May 2014
    Interferometric measurements can be carried out in an optical arrangement in which two or more beams originated from the same source, but passing in different paths are made to interfere....
  • What is a Collimator?
    Article - 10 Jun 2013
    A collimator may be described as a device that focuses or narrows a light beam or a stream of particles to be aligned in a different direction or reduce its cross section. The collimator focuses a...
  • Delving into Optics: Understanding Physical, Geometric, and Quantum Perspectives
    Article - 13 Jun 2024
    This article explores the three major branches of optics—physical, geometric, and quantum—detailing their principles, differences, and applications in modern technology and scientific research.
  • The Role of Photonic Crystals in Controlling Light Propagation
    Article - 21 Aug 2023
    This article discusses photonic crystals and their role in controlling the propagation of light.
  • What are Dark-Field Microscopes?
    Article - 20 Jan 2022
    Dark-field microscopy has been used since the early 20th century to observe living, unstained cells and microorganisms. Specimens are brightly lit against a dark background to provide the contrast...
  • Commercializing Space Optics and the Future of the Industry
    Article - 28 Jan 2021
    Paul Townley-Smith discusses ZYGO's evolution in space optics, focusing on commercialization and innovation in earth imaging and communication.

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