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Results 251 - 260 of 1108 for Optical
  • 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...
  • How Will Optical Imaging Change in The Future?
    Article - 5 Nov 2014
    Optical imaging is a technology which explains the characteristics of infrared, ultraviolet and visible light. ​It is a non-invasive technique which uses non-ionizing radiation in order to...
  • Optical Atomic Clock Could Provide More Accurate Definition of a Second
    Article - 10 Jul 2013
    An international research team led by the Paris Observatory has developed an optical atomic clock based on strontium.
  • Acousto-Optical Effects - Principles and Applications
    Article - 8 Oct 2013
    Acousto-optics is a phenomenon which deals with the interaction of light (optics) and sound (acoustics). The existence of an interaction between light and sound was discovered by Brillouin in the year...
  • What is Optical Parametric Amplification (OPA)?
    Article - 6 May 2014
    Optical parametric amplification (OPA) may be described as a process of amplifying an input signal in the presence of a higher-frequency pump wave. Apart from signal amplification, an idler wave is...
  • What is Optical Cross-Phase Modulation (XPM)?
    Article - 8 Oct 2013
    Optical cross phase modulation (XPM) may be described as a non-linear optical process where the wavelength of one light source affects the phase of another wave.
  • What is the Optical Kerr Effect?
    Article - 10 Oct 2013
    The Kerr effect (also known as quadratic electro-optic effect) is a phenomenon observed in non-linear optic materials where the refractive index of the material changes in response to an electric...
  • What is Electro-Optical Rectification?
    Article - 8 Oct 2013
    Optical rectification or electro-optic rectification may be described as a non-linear optical process that generates a quasi-DC polarization in a non-linear medium by passing an intense beam of light.
  • What is Optical Phase Conjugation?
    Article - 6 May 2014
    Optical phase conjugation is a non-linear optical process, which is capable of time reversing the scattering process and healing the distortions in the wave front.
  • What is an Optical Fiber Isolator?
    Article - 22 Oct 2014
    Optical isolators are optical elements which allow light to propagate in only one direction. The propagation of light in one single direction is required in order to prevent optical back scattering or...

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