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  • What is Optical Resolution?
    Article - 30 Oct 2014
    Optical resolution is the physical resolution at which an imaging device can capture an image.
  • Optical Coherence - Definition and Applications
    Article - 6 May 2014
    Optical coherence is associated with interference effects of light. A field of light is said to be coherent when the electric field values at different locations are in a fixed phase.
  • An Introduction to Optical Harmonics
    Article - 5 Aug 2014
    Non-linear crystals are the materials in which dielectric polarization exhibits a non-linear response with respect to the electric field of the light.
  • An Introduction to Optical Path Length
    Article - 28 Oct 2014
    In the field of optics, optical path length or optical distance is the product of the geometric length of the path light follows through a system, and the index of refraction of the medium through...
  • Optical Cavity - Definition, Properties and Applications
    Article - 1 May 2014
    An optical cavity or an optical resonator may be described as an arrangement of mirrors that produce a standing light wave resonator.
  • Astigmatism in Optical Systems
    Article - 1 May 2014
    An optical system that is plagued with astigmatism focuses two orthogonal axes of light at two different distances.
  • The History of the Catoptric Optical System
    Article - 6 Aug 2014
    Catoptrics has been introduced way back in time by the ancient Greeks. There were two main ancient Greek texts that mentioned catoptrics.Catoptric systems are those optical systems that employ only...
  • Optical Condenser - Definition and Applications
    Article - 1 May 2014
    A condenser is essentially an optical lens that is used to convert a divergent beam from apoint source into a parallel or converging beam.
  • Coma – Definition and Causes of Comatic Optical Aberration
    Article - 12 Feb 2014
    Optical aberrations are deviations from geometric optics that are mainly caused by faults in optical lenses.
  • The Diffraction Limits in Optical Microscopy
    Article - 4 Aug 2014
    The optical microscope, also called the light microscope, is the oldest type of microscope which uses visible light and lenses in order to magnify images of very small samples. It is a standard tool...

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