title: Generation of perfect vectorial vortex beams.
abstract: We propose the concept of perfect vectorial vortex beams (VVBs), which not merely have intensity profile independent of the polarization order and the topological charge of spiral phase, but also have stable intensity profile and state of polarization (SoP) upon propagation. Utilizing a Sagnac interferometer, we approximately generate perfect VVBs with locally linear and elliptical polarizations, and demonstrate that such beams can keep their intensity profile and SoP at a certain propagation distance. These proposed VVBs can be expanded to encode information and quantum cryptography, as well as to enrich the conversion of spin and orbital angular momenta.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
authors.forename: Chaojie
authors.initials: C
authors.lastname: Ma
authors.forename: Lei
authors.initials: L
authors.lastname: Han
authors.forename: Huachao
authors.initials: H
authors.lastname: Cheng
authors.forename: Jianlin
authors.initials: J
authors.lastname: Zhao