Filters transmit some colours of light and absorb other colours of light. Colours which are transmitted pass through the filter and come out the other side. Colours which are absorbed do not pass ...

This is caused by the absorption of a single particle of light, or photon, in molecules called chromophores (molecules that ...

The key was finding a combination that would reduce light scattering in the skin tissue. “We combined the yellow dye, which is a molecule that absorbs most light, especially blue and ultraviolet ...