Laser and Its Application in Industry - Bok av Soleiman Rezaeian Koochi - Häftad
The word laser is made from the first letters of the phrase light amplification by the inductive emission of radiation in Latin, which is usually in the near infrared, visible and ultraviolet wavelengths of the electromagnetic spectrum. Laser-like emissions of longer wavelengths in the microwave region are called \masers\. Basically, laser is called a coherent and monochromatic light source. The proposal of using inductive emission from a system with inverse population for microwave amplification..