title: Simultaneous generation of multiple perfect polarization vortices with selective spatial states in various diffraction orders.
abstract: We demonstrate an approach to generate multiple perfect polarization vortices (PPVs) with selective spatial polarization distribution in various diffraction orders. The key is the design of a hologram with an anisotropic polarization diffraction grating. In the experiment, a setup consisting of two spatial light modulators is built. By encoding the specially designed holograms, PPVs with various states are obtained in different diffraction orders simultaneously, for instance, in radial and azimuthal polarized states. These PPVs may have applications in laser processing, optical tweezers, and so on.
authors.forename: Shiyao
authors.initials: S
authors.lastname: Fu
authors.forename: Chunqing
authors.initials: C
authors.lastname: Gao
authors.forename: Tonglu
authors.initials: T
authors.lastname: Wang
authors.forename: Shikun
authors.initials: S
authors.lastname: Zhang
authors.forename: Yanwang
authors.initials: Y
authors.lastname: Zhai