Anonymous ID: 172d77 Nov. 10, 2018, 1:40 p.m. No.3839045   🗄️.is 🔗kun

>>3838969

But the process only works for wavelengths that correspond to the difference between electron energy levels of the atoms or molecules in the gain medium. That are almost always in the 'light' range of the spectrum. An exception to this is the ammonia-based microwave MASER.