martedì 1 aprile 2025

Lez #17+18 Principles of Laser I

 Recap on Absorption, Spontaneous and stimulated emission. Laser principles, treshold condition. Passive resonator. Is a laser superior to a conventional sources? Trading spatial and temporal coherence with flux. Statistical properties of light. How to make a laser: 2/3/4 level systems. Different type of lasers, He-Ne, ruby, excimers.

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