De quoi est fait laser
A source of coherent light (Maiman; Basov, Prokhorov, Townes).
- Mirror — a pour partie. A resonator made of mirrors.
- Stimulated emission — utilise. The working principle of the laser.
- Semiconductor — est fait de. Maiman’s first laser was a ruby crystal; today it is more often a semiconductor.
- Glass — est fait de. The optics are glass.