title: Spin-to-orbital angular momentum conversion in focusing, scattering, and imaging systems.
abstract: We present a general theory of spin-to-orbital angular momentum (AM) conversion of light in focusing, scattering, and imaging optical systems. Our theory employs universal geometric transformations of non-paraxial optical fields in such systems and allows for direct calculation and comparison of the AM conversion efficiency in different physical settings. Observations of the AM conversions using local intensity distributions and far-field polarimetric measurements are discussed.
authors.affiliation: Applied Optics Group, School of Physics, National University of Ireland, Galway, Galway, Ireland. k.bliokh@gmail.com
authors.forename: Konstantin Y
authors.initials: KY
authors.lastname: Bliokh
authors.forename: Elena A
authors.initials: EA
authors.lastname: Ostrovskaya
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Alonso
authors.forename: Oscar G
authors.initials: OG
authors.lastname: Rodríguez-Herrera
authors.forename: David
authors.initials: D
authors.lastname: Lara
authors.forename: Chris
authors.initials: C
authors.lastname: Dainty
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008027:Light; D008962:Models, Theoretical; D012542:Scattering, Radiation