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Results 321 - 330 of 425 for Spectroscopy
  • 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 a Mercury Vapour Lamp?
    Article - 6 May 2014
    A mercury vapour lamp is a high-pressure electric arc discharge lamp that provides intense illumination over a selected range of wavelengths.
  • What is a Nernst Lamp?
    Article - 18 Jun 2013
    Nernst lamps are thermal light sources that emit radiation near the infra red region of the electromagnetic spectrum.
  • What is a Globar?
    Article - 21 Jun 2013
    Globar is a thermal light source that emits radiation near the infra red region of the electromagnetic spectrum.
  • What is a Photomultiplier?
    Article - 8 Jul 2013
    Photomultipliers or photomultiplier tubes (PMTs) belong to a class of vacuum tubes that convert photons into electric signal. PMTs are known for their ultra-fast response and high sensitivity. They...
  • What is a CCD Sensor?
    Article - 23 Oct 2014
    The CCD (charge coupled device) was first invented at the Bell laboratories in the 1960s. CCDs are thin wafers which consist of a number of buried electrodes that facilitate the movement of electrons...
  • What is a Photodiode?
    Article - 5 Jun 2013
    A photodiode can be described as a photo detector that is capable of converting incident light into voltage or current.
  • Neon-Copper Lasers – Properties and Applications
    Article - 25 Apr 2014
    Neon Copper laser are known for generating deep ultraviolet wavelengths. The wavelength produced by this laser is 248 nm. This laser is known for having narrow oscillation line widths (less than 3...
  • Stilbene Dye Lasers - Properties and Applications
    Article - 25 Apr 2014
    Stilbene is a relatively colorless, unreactive compound that is highly insoluble in water. Stilbene derivatives are thermally and chemically stable, and have absorption and fluorescence properties...
  • Nitrogen Lasers – Properties and Applications
    Article - 8 May 2013
    A nitrogen laser is a gas laser operating in the ultraviolet (UV) range by using molecular nitrogen as its gain medium. Nitrogen lasers were first developed in 1963, and began to be used commercially...

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