Lecture 4-LASER Basic concept Properties

Published by prakrsinha on

Lecture 4-LASER Basic concept Properties

Lasers are special and different from other light sources due to coherence. Laser beams can be focused to very tiny spots. That’s why the laser gun is important. They can have very low divergence in order to concentrate their power at a great distance. Laser means light amplification by stimulated emission of radiation.


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