Structure of a plane electromagnetic wave

A plane EM wave has a simple, regular geometry: $\vec{E}$ and $\vec{B}$ perpendicular to each other and to the direction of propagation, in phase, with $|E| = c\,|B|$. This section describes the structure of the wave, then introduces the Poynting vector (the energy carried) and radiation pressure (the momentum).

• Structure of a plane wave
• Poynting vector and intensity
• Radiation pressure