Did you know that laser is actually an acronym? It stands for ‘light amplification by stimulated emission of radiation’. The light is emitted as a coherent beam, meaning that it can be focused to a specific area. This allows the laser beam to be used in a number of different applications. Energy is added to a normal beam of light in order to make it more powerful and fulfil its function.
Lasers make use of a medium and an atom stimulation process. This makes the light more intense and means that it can be used in a number of different ways. This might contain something like a ruby crystal.
By putting the atoms through this process, the light beams can be used for a number of different processes. They could be used for cutting, engraving or as part of an electronic system. Many everyday objects use lasers, like DVD players.