Do photons actually slow down in a medium, or is the speed decrease just apparent?
23937
What is the mechanism behind the slowdown of light/photons in a transparent medium?
67127
Does the speed of light vary in non-inertial frames?
77731
'size' of a photon
100415
Do photons lose energy after radiation pressure is applied to a perfect reflector?
11053
Planck's Law in terms of wavelength
16748
What happens if light/particles exceeded the speed of light for a particular medium?
8367
What do physicists mean when they say "speed of light"?
120621
Speed of Dark experiment, does it *really* travel faster than light?
119953
What is the meaning of speed of light $c$ in $E=mc^2$?
142906
How can a particle in a medium ever travel faster than light?
144809
Do photons affect one another
81880
How can a photon have no mass and still travel at the speed of light?
78223
How does a photon travel through glass?
100807
Are the Maxwell equations a correct description of the wave character of photons?
100599
What is the trajectory of a photon moving through a vacuum?
130255
Why doesn't a typical beam splitter cause a photon to decohere?
60149
Can photons be detected without being absorbed?