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  • What is Four-Wave Mixing?
    Article - 1 Oct 2014
    Four-wave mixing (FWM) is a non-linear optical process where two other waves are produced by the interaction of two wavelengths. Four-wave mixing can take place in any kind of material.
  • 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...
  • What is a Periscope?
    Article - 11 Sep 2014
    A periscope can be defined as an optical instrument that allows the viewing of objects that are not in the direct life of vision. Periscopes prove to be of great help to submariners to have a view of...
  • Aluminum Gallium Arsenide Lasers – Properties and Applications
    Article - 25 Apr 2014
    The aluminium gallium arsenide laser is a diode laser, having similar characteristics as that of aluminium gallium indium phosphide laser. The structure of AlGaAs is the same as gallium arsenide, but...
  • Cerium LiSAF and Cerium LiCAF Lasers – Properties and Applications
    Article - 25 Apr 2014
    Cerium is the simplest rare earth metal known. The Ce:LiSAF and Ce:LiCAF lasers are categorised as UV diode lasers.
  • Ytterbium YAG Lasers - Properties and Applications
    Article - 20 Jun 2013
    Ytterbium-doped yttrium aluminum garnet (Yb:YAG) laser is one of the most promising laser-active materials that are more suitable for diode-pumping than the traditional Nd-doped systems.
  • Neodymium Glass Lasers - Properties and Applications
    Article - 21 May 2013
    Neodymium glass (Nd:Glass) lasers are isotropic, and can be doped at high concentrations with excellent uniformity. All these properties distinguish Nd:glass lasers from other solid-state lasers.
  • Coumarin Dye Lasers - Properties and Applications
    Article - 25 Apr 2014
    Coumarins are a group of widely used laser dyes that emit blue-green light. 7-diethylamino-4-methylcoumarin was the first coumarin laser dye that exhibits laser action at around 460 nm during flash...
  • What is a Monochromator?
    Article - 17 Aug 2012
    A monochromator is an optical component which is used to produce a beam of light with a very narrow bandwidth - effectively light of a single colour.
  • Ultra Precision and Nanoengineering Masters Course (MSc) at Cranfield University
    Article - 22 Jun 2010
    Suitable for science and engineering graduates with an interest in the development of ultra precision and nanoengineered surfaces and their applications.

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