Electromagnetic field near the focus of wide-angular lens and mirror systems
The time-averaged electric energy density near the focus of a parabolic mirror of wide-angular aperture is calculated and compared with that of an aplanatic lens system. The distributions exhibit great differences, the mirror showing a greater departure from circular symmetry, a more complicated structure and increased sidelobes. The vectorial integral representation of Wolf is derived from the Stratton-Chu formula.
- Richards, B., Wolf, E.: `Electromagnetic diffraction in optical systems. Pt. II–Structure of the image field in an aplanatic system', Proc. Roy. Soc, 1959, A 253, p. 358–379
- Wolf, E.: `Electromagnetic diffraction in optical systems. Pt. I – An integral representation of the image field', Proc. Roy. Soc, 1959, A 253, p. 349–357
- , Electromagnetic theory