The laser: stimulated emission and population inversion
How to make perfectly ordered light: the stimulated emission predicted by Einstein, the population inversion that makes amplification possible, the optical cavity, and the exceptional properties of the laser. A flagship application of quantum physics, with diagrams of the energy levels and the cavity.
Advanced 70 min 29 viewsphysiquequantiquelaserphotonlycée
Table of contents
- 01
The three fundamental processes
- 02
From the gain medium to the laser beam