title: Spin-to-orbital angular momentum conversion in dielectric metasurfaces: erratum.
abstract: We would like to clarify our paper [Opt. Express25, 377 (2017)] abstract sentence "These beams carry orbital angular momentum proportional to the number of intertwined helices constituting the wavefront."
authors.forename: Robert Charles
authors.initials: RC
authors.lastname: Devlin
authors.forename: Antonio
authors.initials: A
authors.lastname: Ambrosio
authors.forename: Daniel
authors.initials: D
authors.lastname: Wintz
authors.forename: Stefano Luigi
authors.initials: SL
authors.lastname: Oscurato
authors.forename: Alexander Yutong
authors.initials: AY
authors.lastname: Zhu
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Khorasaninejad
authors.forename: Jaewon
authors.initials: J
authors.lastname: Oh
authors.forename: Pasqualino
authors.initials: P
authors.lastname: Maddalena
authors.forename: Federico
authors.initials: F
authors.lastname: Capasso