... light source material provides a particular form of energy state in which the excited atoms pause before returning to their ground state(metastable state).they remain in this state until stimulated into returning to ground state. Unlike conventional bulbs, which have no mid-energy state(Metastable state). They go from their ground state to the excited state and back again to ... range finders for aircrafts use laser distance meters Laser used for automatic landing systems for aircrafts. Military use of lasers involve the illumination of a target from an aircraft and an air-dropped bomb ...

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