De quoi est fait maser
The microwave forerunner of the laser.
- Maser resonant cavity — a pour partie. A cavity tuned to the transition frequency.
- Electrostatic state selector — a pour partie. It selects the excited molecules.
- Stimulated emission — utilise. The same principle in microwaves.
- Ammoniac — utilise. The working substance.
- Ammoniac — est fait de. The first maser ran on ammonia.
- Cuivre — est fait de. The resonator is copper.