This is a tag along to a previous question I presented pertaining to the 'storage of light'.
Is the speed of light constant? Can it be reduced or made dormant altogether?
Do different wavelengths travel at different speeds?
If light is able to bend, might it be bent in such a way or to such an extent that it is effectively slowed in relationship with the transmission point to the reflection/reception point?
Is the speed of light constant?
Speed of light in vacuum is constant, and its value is close to $3 \times 10^8\ \rm m\ s^{−1}$. Speed of light will also be constant (but not necessarily $3 \times 10^8\ \rm m\ s^{−1} $) in any medium with uniform refractive index throughout space.
Can it be reduced or made dormant altogether?
Speed of light will be lower (but never higher) in a medium other than vacuum depending on the refractive index of the medium. This is due to disturbances caused by charges within atoms of the medium. Here's a good visual explanation given by 3Blue1Brown in youtube: video
Do different wavelengths travel at different speeds?
Within a given medium, speed of light is constant, but it's wavelength may vary depending on the amount of energy. When light moves from a medium of low refractive index to a medium of high refractive index, both speed & wavelength reduces by a factor equal to the relative refractive index between these media.
If light is able to bend, might it be bent in such a way or to such an extent that it is effectively slowed in relationship with the transmission point to the reflection/reception point?
No. But if your objective is to make light slower (than $3 \times 10^8\ \rm m\ s^{−1} $), choosing an appropriate medium will be the only right answer.
NB: Cherenkov radiation is something you might be interested in reading
