Properties Of Lasers

Properties Of Laser

  • Laser light is highly monochromatic. Light emitted from a light has a small range of wavelength. While normal light consists of a broad spectrum of wavelength, the typical laser can emit light with a wavelength spread of only a few nm.
  • Laser light is highly coherent. Laser light from two sources can form an inteference pattern even though their path difference can be several hundreds kilometres.
  • Laser light is highly directional. Can travel long distances without much divergence
  • Laser light can be sharply focused. This implies that it is possible to have a large amount of laser light energy incident upon a small area.

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