Riemann–Silberstein vector

Riemann–Silberstein vectors are used to explain the behaviour of electromagnetic waves like radio waves, light, and microwaves. A Riemann–Silberstein vector is made up of two parts - the 'electric' part and the 'magnetic' part. The electric part is a vector (a line with a direction and a size) that shows how strong the electric force of the wave is, and the magnetic part is also a vector that shows how strong the magnetic force of the wave is. Together, the two parts of the Riemann–Silberstein vector show how strong each part of the wave's force is, in different directions.