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  • Diverging Lens - Definition and Characteristics
    Article - 6 May 2014
    A lens is an optical device that transmits light by refraction; the incident beam is either converged or diverged based on the nature of the lens.
  • 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...
  • 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.
  • Using a Smartphone for Virus Detection
    Article - 26 Sep 2013
    Advancements in smartphones are continuing to progress with an effort to making these phones capable of being applied in sophisticated fields of application including laboratory analysis.
  • What is High Harmonic Generation?
    Article - 6 May 2014
    High harmonic generation may be described as an optical process of generating high harmonics of frequency from a fixed frequency laser light. For generation of high harmonics a high power laser source...
  • What is a PLED (Polymer LED)?
    Article - 18 Jun 2013
    Polymer light emitting diode (PLED) is an LED whose emitting layer is made of a polymer material. This could make a flexible and easy-to-manufacture light source.
  • What is an Optical Longpass Filter?
    Article - 25 Apr 2014
    An optical longpass filter is defined as an optical filter that passes all wavelengths from a given wavelength to the red of that wavelength.
  • What is an Optical Diffuser?
    Article - 24 Jul 2013
    An optical diffuser can be defined as an element that scatters light. An optical diffuser is used for softening or giving shape to an illumination. Optical diffusers are commonly used in commercial...
  • Nd:YVO4 Lasers - Properties and Applications
    Article - 25 Apr 2014
    Neodymium-doped yttrium orthovanadate (Nd:YVO4) is a crystalline material that is formed by the addition of neodymium ions to yttrium orthovanadate.
  • Copper Vapor Lasers - Properties and Applications
    Article - 25 Apr 2014
    Copper vapor laser makes use of copper vapors as a lasing medium. It emits yellow and green laser light at 578.2 and 510.6 nm of the electromagnetic spectrum, respectively.

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