3 ms·

> imagine a laser at typical radio wavelengths Huh? Radios are Kilo/Mega/Gigahertz. Light is Terahertz.

• yellowapple 7y ago
  Okay, sorry, "electromagnetic radiation amplified and collimated in the same manner as a laser does to visible light". Better?
  • lloeki 7y ago
    Like beamforming, or something more extreme like a maser? https://en.m.wikipedia.org/wiki/Beamforming https://en.m.wikipedia.org/wiki/Beamforming https://en.m.wikipedia.org/wiki/Maser https://en.m.wikipedia.org/wiki/Maser
    • yellowapple 7y ago
      A maser's what I had in mind, but either would likely work reasonably well.
    • bifrost 7y ago
      As an aside, the Maser wikipedia article is a bit incorrect. > The laser works by the same principle as the maser, but produces higher frequency coherent radiation at visible wavelengths. There are plenty of lasers in the non-visible spectrum, I use IR lasers all the time.