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Concentrated light can be incredibly powerful and useful. Learn how laser beams are produced by controlling how atoms emit photons of light.Key facts
- Lasers are photons of the same frequency going in the same direction.
- LASER stands for Light Amplification by Stimulated Emission of Radiation.
- A laser is both strong and accurate.
- Lasers are found in DVDs and used to cut metals and perform eye surgery.
Transcript
A laser beam is made simply of light. Yet, a laser can cut through steel in a matter of seconds.
To find out how laser beams are made we must first look at an atom.
When energy is applied to an atom, the electrons orbiting the nucleus can become excited and ...
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