Lutein is apparently employed by animals as an antioxidant and for blue light absorption.

From the light absorption, Beer's law makes it possible to calculate the concentration of the coloured substance in the solution.

What is actually happening at the molecular/atomic level to cause heating of the object from light absorption?

Rods have a high area for visual pigment and thus substantial efficiency of light absorption.

In general, light absorption and scattering decreases with increasing wavelength.

Uncoated fabrics provide the next level of heat insulation and light absorption.

A good way to detect light absorption of glazing is so-called white paper test.

Hence, the possibility of light absorption by the silicon is increased.

However, some solar cells are optimized for light absorption beyond Earth's atmosphere as well.

Measuring light absorption is easy with a spectrophotometer; that's what they do.