Characteristics of LASER

Laser radiation is different from normal light radiation. The characteristics of laser are given below:

  • Laser radiation is monochromatic. It contains only one particular wavelength (colour) of light. The wavelength is determined by the amount of energy released.

  • Laser radiation is coherent. In emitted radiation all the photons are having the same phase and amplitude.

  • Laser radiation is highly directional. Laser beam of light can travel very long distance, without much divergence.

  • Laser radiation is very intense. The intensity and hence the brightness of the laser radiation is high.
  • The radiation having single wavelength, same amplitude and same phase is called ‘coherent radiation’.
     

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