Transverse Electromagnetic Waves with Finite Energy, Action, and∫E→·B→d4x

Transverse electromagnetic waves possessing finite energy, action, and $\int \overrightarrow{\mathrm{E}}·\overrightarrow{\mathrm{B}}{d}^{4}x$ are obtained in 3 + 1 dimensions as a solution of the source-free Maxwell's equation in vacuum.