Question

principle of LASER...........​

Answer 1

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➪ Principle of Lasers. The principle of a laser is based on three separate features:

a) stimulated emission within an amplifying medium .

b) population inversion of electronics.

c) an optical resonator.

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Answer 2

Explanation:

To explain the process of light amplification in a laser requires an understanding of the energy transition phenomena in the atoms of its active medium. They include: spontaneous emission, stimulated emission/absorption and non-radiative decay.

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