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  • Article - 14 Mar 2014
    Thermoelectric cooling is a process of eliminating heat energy from a device, component or medium with the application of constant voltage between two dissimilar semiconductors or electrical...
  • Article - 13 Mar 2014
    A photodiode is a kind of light detector which involves conversion of light into voltage or current based on the mode of operation of the device. It consists of built-in lenses, optical filters, and...
  • News - 14 Oct 2007
    A Princeton-led research team has created an easy-to-produce material from the stuff of computer chips that has the rare ability to bend light in the opposite direction from all naturally occurring...
  • Article - 27 Feb 2014
    The axicon lens is a specialized lens that bears a conical surface. The axicon lens images a point source as a line along the optic axis.
  • Article - 21 Jan 2014
    Optical resolution is the physical resolution at which an imaging device can capture an image.
  • Article - 17 Jan 2014
    The term photon was coined by Gilbert Lewis in 1926. A photon is a type of elementary particle that forms the basic unit of electromagnetic radiation, which includes infrared, ultraviolet, visible...
  • Article - 31 Dec 2013
    A focal point is a common point on the principal axis where all the light rays starting from the object converge.
  • Article - 27 Dec 2013
    Catadioptric systems may be defined as optical systems that make use of lenses and mirrors for the formation of images.
  • Article - 23 Dec 2013
    The Cassegrain telescope is an astronomical reflecting telescope in which the light is incident on a large concave paraboloid mirror and reflected onto a smaller convex hyperboloid mirror.
  • Article - 21 Nov 2013
    Light sheet fluorescence microscopy (LSFM), also known as selective plane illumination microscopy (SPIM), is a non-destructive, versatile imaging tool that operates as a microscope and microtome using...