title: Indistinguishability limit for off-axis vortex beams in uniaxial crystals.
abstract: The circular polarization components of a vortex beam in a uniaxial crystal exhibit complex propagation characteristics. We demonstrate how the amount of splitting may be distinguished by use of a vortex beam. We predict and experimentally verify a threshold angle subtending the crystal and beam axes, below which the splitting is indistinguishable.
authors.affiliation: Physical Department, Taurida National University, Crimea, Ukraine.
authors.forename: T
authors.initials: T
authors.lastname: Fadeyeva
authors.forename: Yu
authors.initials: Y
authors.lastname: Egorov
authors.forename: A
authors.initials: A
authors.lastname: Rubass
authors.forename: G A
authors.initials: GA
authors.lastname: Swartzlander
authors.forename: A
authors.initials: A
authors.lastname: Volyar