Čerenkov radiation
Askaryan radiation, similar radiation produced by fast uncharged particles
Blue noise
Bremsstrahlung, radiation produced when charged particles are decelerated by other charged particles
Faster-than-light, about conjectural propagation of information or matter faster than the speed of light
Frank–Tamm formula, giving the spectrum of Cherenkov radiation
Light echo
List of light sources
Non-radiation condition
Radioluminescence
Tachyon
Transition radiation
https://en.wikipedia.org/wiki/Cherenkov_radiation