Focusing of high numerical aperture cylindrical-vector beams.

  title={Focusing of high numerical aperture cylindrical-vector beams.},
  author={Kathleen S Youngworth and Thomas Brown},
  journal={Optics express},
  volume={7 2},
Cylindrical-vector beams are of increasing recent interest for their role in novel laser resonators and their applications to electron acceleration and scanning microscopy. In this paper, we calculate cylindrical-vector fields, near the focal region of an aplanatic lens, and briefly discuss some applications. We show that, in the particular case of a tightly focused, radially polarized beam, the polarization shows large inhomogeneities in the focal region, while the azimuthally polarized beam… CONTINUE READING
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