title: Primary aberrations in focused radially polarized vortex beams.
abstract: We study the effect of primary aberrations on the 3-D polarization of the electric field in a focused lowest order radially polarized beam. A full vector diffraction treatment of the focused beams is used. Attention is given to the effects of primary spherical, astigmatic, and comatic aberrations on the local polarization, Strehl ratio, and aberration induced degradation of the longitudinal field at focus.
authors.forename: David
authors.initials: D
authors.lastname: Biss
authors.forename: T
authors.initials: T
authors.lastname: Brown