Question

Describe three characteristics of laser light. How can we produce laser from three laser type (use energy level in your describing)? give an example of this type of laser.​

Answer 1

What type of energy does a laser use?

In this document the word laser will be limited to electromagnetic radiation emitting devices using light amplification by stimulated emission of radiation at wavelengths from 180 nanometers to 1 millimeter. The electromagnetic spectrum includes energy ranging from gamma rays to electricity.