3 ms·

If I were made of photons it wouldn't be able to!

• nullc 6y ago
  Of course it would: It's coherent light! [But seriously, the green light of a standard green laser pointer is generated from the non-linear interaction of pairs of 1064nm photons.]
  • octoberfranklin 6y ago
    > the green light of a standard green laser pointer is generated from the non-linear interaction of pairs of 1064nm photons. Um, no. It is caused by stimulated emission in the lasing medium, when electrons drop from a higher to lower energy level. Pairs of photons do not interact with each other. https://en.m.wikipedia.org/wiki/Laser_pumping https://en.m.wikipedia.org/wiki/Laser_pumping In rare situations you might have an ion or an entire atom changing energy levels. But never just a photon. https://en.m.wikipedia.org/wiki/Stimulated_emission https://en.m.wikipedia.org/wiki/Stimulated_emission If you don't believe that photons are bosons I don't think we're going to get anywhere with this discussion...
    • nullc 6y ago
      > It is caused by stimulated emission in the lasing medium, when electrons drop from a higher to lower energy level. In a typical green laser pointer a 1064nm light is produced via ordinary laser mechanisms, then 1064nm light is upconverted in a non-linear medium to 523nm. https://en.wikipedia.org/wiki/Second-harmonic_generation https://en.wikipedia.org/wiki/Second-harmonic_generation Yes, in a medium. You also don't see a lot of conventional computers constructed without semiconductors. :)